{"id":7824,"date":"2026-10-09T16:33:17","date_gmt":"2026-10-09T16:33:17","guid":{"rendered":"https:\/\/wordpress.viu.ca\/biol325\/?p=7824"},"modified":"2026-10-09T16:33:18","modified_gmt":"2026-10-09T16:33:18","slug":"the-northern-shoveler-the-scoop-on-spoonies","status":"publish","type":"post","link":"https:\/\/wordpress.viu.ca\/biol325\/2026\/10\/09\/the-northern-shoveler-the-scoop-on-spoonies\/","title":{"rendered":"The Northern Shoveler: The Scoop on Spoonies"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The northern shoveler (<em>Spatula clypeata<\/em>) is a common bird with a unique appearance that makes them easily recognizable. Considering their heads are always down, sifting through the water for food, you might walk right by one and not even notice! These strange looking birds have some interesting behaviours that make them even more unique. Have you ever seen a duck make a whirlpool? Let\u2019s dabble in what makes these waterfowl so wonderful.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Identification<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The northern shoveler is a medium sized duck with an extra large sized bill. This spoon-like bill is a clear sign you\u2019re looking at a shoveler, and it\u2019s where they get their nickname \u201cSpoonies\u201d from (<a href=\"https:\/\/www.fws.gov\/species\/northern-shoveler-anas-clypeata\">United States Fish and Wildlife Services<\/a>). They are around 44-51 cm long, and weigh 400-820 grams, leaving them just a bit smaller than a mallard (<a href=\"https:\/\/www.allaboutbirds.org\/guide\/Northern_Shoveler\/id\">All About Birds<\/a>).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A male northern shoveler in his breeding colours looks somewhat similar to a mallard, with a green head. The white chest, brown sides, and black bill set him apart from his more common cousin. He also has a blue patch on the shoulder of the wing, and a green patch just below that. Nonbreeding males are all brown with an orange-ish patch on the sides (<a href=\"https:\/\/www.allaboutbirds.org\/guide\/Northern_Shoveler\/id\">All About Birds<\/a>). They also keep their black bill and yellow eyes.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-12.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-12-1024x683.png\" alt=\"\" class=\"wp-image-7827\" style=\"aspect-ratio:1.5;width:462px;height:auto\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-12-1024x683.png 1024w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-12-300x200.png 300w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-12-768x512.png 768w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-12.png 1416w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 1:<\/strong> A male northern shoveler in breeding plumage (Picture from <a href=\"https:\/\/www.audubon.org\/field-guide\/bird\/northern-shoveler\">Audubon<\/a>)<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-10.png\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"540\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-10.png\" alt=\"\" class=\"wp-image-7825\" style=\"aspect-ratio:1.3344370860927153;width:403px;height:auto\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-10.png 720w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-10-300x225.png 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 2:<\/strong> A male northern shoveler in his nonbreeding plumage (Picture from <a href=\"https:\/\/www.allaboutbirds.org\/guide\/Northern_Shoveler\/photo-gallery\/300125131\">All About Birds<\/a>)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Females and immature males look similar to a female mallard with an oversized bill. They\u2019re brown with lighter brown around the edges of the body feathers, and a bright orange bill (<a href=\"https:\/\/www.allaboutbirds.org\/guide\/Northern_Shoveler\/id\">All About Birds<\/a>). They also have a green patch on the bottom edge of the wing, though it\u2019s duller than in the breeding males. The duller colours of the females are to help with camouflage (<a href=\"https:\/\/www.ebsco.com\/research-starters\/zoology\/northern-shoveler\/\">EBSCO<\/a>).<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-14.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"596\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-14-1024x596.png\" alt=\"\" class=\"wp-image-7829\" style=\"aspect-ratio:1.714828897338403;width:451px;height:auto\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-14-1024x596.png 1024w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-14-300x174.png 300w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-14-768x447.png 768w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-14-1536x893.png 1536w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-14.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 3:<\/strong> A female mallard (left) next to a northern shoveler (right) (Picture from E. Kludash)<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-16.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"728\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-16-1024x728.png\" alt=\"\" class=\"wp-image-7830\" style=\"aspect-ratio:1.4071661237785016;width:432px;height:auto\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-16-1024x728.png 1024w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-16-300x213.png 300w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-16-768x546.png 768w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-16-1536x1091.png 1536w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-16.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 4:<\/strong> A northern shoveler (Picture from E. Kludash)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As for sounds they make, when flying, courting females, or when alarmed, the males will make a \u201ctuk tuk\u201d sound. Females make a nasally quack.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-embed-handler wp-block-embed-embed-handler wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Northern Shoveler Bird Sound Video Nature Sounds\" width=\"1180\" height=\"664\" src=\"https:\/\/www.youtube.com\/embed\/Aw--fYLhcTQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 5:<\/strong> A video recording of the sound a male northern shoveler makes. (Video from <a href=\"https:\/\/www.youtube.com\/@birdwatchinglife\">@BirdWatchingLife<\/a>)<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-left\">Distribution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">As a migratory species, northern shovelers like to move around a lot. They live all across the northern hemisphere, including North America, Africa, Asia, and Europe (Moreau et al., 2024).&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In North America, they breed in the provinces of British Columbia, Alberta, Manitoba, and Saskatchewan, as well as Alaska. They migrate through Ontario and the north eastern states, then spend the winter in the southern states and Mexico. (<a href=\"https:\/\/www.audubon.org\/field-guide\/bird\/northern-shoveler\">Audubon<\/a>)<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-18.png\"><img loading=\"lazy\" decoding=\"async\" width=\"452\" height=\"452\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-18.png\" alt=\"\" class=\"wp-image-7834\" style=\"aspect-ratio:1;width:312px;height:auto\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-18.png 452w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-18-300x300.png 300w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-18-150x150.png 150w\" sizes=\"auto, (max-width: 452px) 100vw, 452px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 6:<\/strong> A map of North America showing the breeding range (red), winter range (blue) migration range (grey), and year round range (purple) of the northern shoveler. (Picture from <a href=\"https:\/\/www.audubon.org\/field-guide\/bird\/northern-shoveler\">Audubon<\/a>)<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-11.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"506\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-11-1024x506.png\" alt=\"\" class=\"wp-image-7826\" style=\"aspect-ratio:2.0318725099601593;width:510px;height:auto\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-11-1024x506.png 1024w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-11-300x148.png 300w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-11-768x380.png 768w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-11-1536x759.png 1536w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-11.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 7:<\/strong> A map showing the global range of the northern shoveler (Picture from <a href=\"https:\/\/stlzoo.org\/animals\/birds\/waterfowl\/northern-shoveler\">Saint Loius Zoo<\/a>)<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-left\">Habitat<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Since shovelers like to spend their time mucking around in shallow water to look for food, you can usually find them in shallow wetlands, marshes, lagoons, and flooded fields. They like to hang around sewage treatment lagoons where there\u2019s lots of invertebrates to eat, so they must not mind the smell (<a href=\"https:\/\/www.fws.gov\/species\/northern-shoveler-anas-clypeata\">United States Fish and Wildlife Services<\/a>).&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-19.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"597\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-19-1024x597.png\" alt=\"\" class=\"wp-image-7835\" style=\"aspect-ratio:1.7155555555555555;width:386px;height:auto\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-19-1024x597.png 1024w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-19-300x175.png 300w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-19-768x447.png 768w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-19-1536x895.png 1536w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-19.png 1821w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 8:<\/strong> A marsh. (Picture from <a href=\"https:\/\/www.wetlandpolicy.ca\/canadian-wetland-classification-system\">Wetland Policy<\/a>)<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">General Behaviour<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">As dabbling ducks, they tend to have their heads down to sift through the water for food using their specialized bills (Roos-Mu\u00f1oz et al., 2026). They move their heads side to side to search around for their food, and they mostly eat seeds, aquatic plants, crustaceans, molluscs, and aquatic insects (<a href=\"https:\/\/www.audubon.org\/field-guide\/bird\/northern-shoveler\">Audubon<\/a>).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">They sift through the mud using projections on their bill called lamellae, which filters the food out of the water like a sieve (<a href=\"https:\/\/www.10000birds.com\/mating-and-feeding-behavior-of-the-northern-shoveler.htm\">10000 Birds<\/a>). Northern shovelers have been found to be very effective at moving microorganisms between bodies of water, possibly due to their lamellae helping them filter out these microorganisms to eat. The microbes can occasionally survive the digestive system, and make it out the other side unscathed (B. Szab\u00f3 et al., 2022).<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-13.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"710\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-13-1024x710.png\" alt=\"\" class=\"wp-image-7828\" style=\"aspect-ratio:1.4370370370370371;width:388px;height:auto\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-13-1024x710.png 1024w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-13-300x208.png 300w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-13-768x533.png 768w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-13.png 1427w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 9:<\/strong> A northern shoveler with its bill open, showing the lamellae (Picture from <a href=\"https:\/\/roadsendnaturalist.com\/2016\/02\/24\/meandering-at-mattamuskeet\/\">Roads End Naturalist<\/a>)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Interestingly, they forage both during the day and at night, but primarily feed at night (Moreau et al., 2024). Sometimes, groups of northern shovelers will all swim in a circle together. Why? Because it makes a whirlpool that stirs up food from the bottom of the pond and brings it to the surface. (<a href=\"https:\/\/www.fws.gov\/species\/northern-shoveler-anas-clypeata\">United States Fish and Wildlife Services<\/a>). You can see a video of this delightful display here:<\/p>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Northern Shovelers  - swimming  in circles, bird&amp;apos;s team work\" width=\"1180\" height=\"664\" src=\"https:\/\/www.youtube.com\/embed\/sGoVhRBLSQ8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 10:<\/strong> A video showing how northern shovelers swim in circles to draw up food from the bottom of the pond. (Video from <a href=\"https:\/\/www.youtube.com\/@natbelhome\">Nat Bel<\/a>)<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-15.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"533\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-15-1024x533.png\" alt=\"\" class=\"wp-image-7831\" style=\"aspect-ratio:1.9222222222222223;width:519px;height:auto\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-15-1024x533.png 1024w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-15-300x156.png 300w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-15-768x400.png 768w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-15-1536x799.png 1536w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-15.png 1701w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 11:<\/strong> A northern shoveler (right) with a northern pintail (left) (Picture from E. Kludash)<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Breeding Behaviour<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Northern shovelers pair up during the winter, when males attempt to court females by flapping their wings, turning, and pumping their heads (<a href=\"https:\/\/www.allaboutbirds.org\/guide\/Northern_Shoveler\/lifehistory\">All About Birds<\/a>). Unlike many other duck species, they\u2019re mostly monogamous, meaning they only have one partner at a time (<a href=\"https:\/\/nationalzoo.si.edu\/animals\/northern-shoveler\">Smithsonian\u2019s Natural Zoo &amp; Conservation Biology Institute<\/a>). The males stay with the females for some of the incubation period, which is longer than most other duck species. Though he may stick around, he doesn\u2019t help care for the eggs (<a href=\"https:\/\/www.audubon.org\/field-guide\/bird\/northern-shoveler\">Audubon<\/a>). He does, however, defend his mate from other ducks while she builds the nest (<a href=\"https:\/\/www.ebsco.com\/research-starters\/zoology\/northern-shoveler\/\">EBSCO<\/a>).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">They breed along the edges of wetlands and the grassy areas surrounding them, where the female makes a small pit in the ground as a nest, which she lines with feathers and grass. If she\u2019s disturbed by a predator while sitting on the eggs, she\u2019ll poop on the eggs and fly away to try and deter the predator (<a href=\"https:\/\/nationalzoo.si.edu\/animals\/northern-shoveler\">Smithsonian\u2019s Natural Zoo &amp; Conservation Biology Institute<\/a>).&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Conservation<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Fortunately, northern shovelers are considered least concern according to the IUCN red list (<a href=\"https:\/\/www.iucnredlist.org\/species\/22680247\/153875944\">IUCN Red List<\/a>). The population is relatively stable, and the species is quite common (<a href=\"https:\/\/www.audubon.org\/field-guide\/bird\/northern-shoveler\">Audubon<\/a>). The population in North America has had a large increase since the 1970s (<a href=\"https:\/\/wildlife-species.canada.ca\/bird-status\/oiseau-bird-eng.aspx?sY=2019&amp;sL=e&amp;sM=c&amp;sB=NSHO\">Wildlife Species Canada<\/a>), though the population has been decreasing globally (<a href=\"https:\/\/nationalzoo.si.edu\/animals\/northern-shoveler\">Smithsonian\u2019s Natural Zoo &amp; Conservation Biology Institute<\/a>).&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The biggest concern with their conservation is habitat loss (<a href=\"https:\/\/wildlife-species.canada.ca\/bird-status\/oiseau-bird-eng.aspx?sY=2019&amp;sL=e&amp;sM=c&amp;sB=NSHO\">Wildlife Species Canada<\/a>). When their habitats are destroyed, there&#8217;s less room for them to breed in ideal spots, leading to less shovelers being born the next year. They are often hunted, as well, which contributes to their global decline (<a href=\"https:\/\/nationalzoo.si.edu\/animals\/northern-shoveler\">Smithsonian\u2019s Natural Zoo &amp; Conservation Biology Institute<\/a>).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Did you know?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>They\u2019re the only duck species that is zooplanktivorous (eats plankton) (Abda et al., 2015).<\/li>\n\n\n\n<li>Newly hatched chicks have a small, almost normal looking bill at first. The young can swim only a few hours after hatching (<a href=\"https:\/\/nationalzoo.si.edu\/animals\/news\/historic-hatching-northern-shoveler-ducklings\">Smithsonian\u2019s Natural Zoo &amp; Conservation Biology Institute<\/a>).<\/li>\n\n\n\n<li>Males molt all their flight feathers before migrating, so there\u2019s a short period of time where they can\u2019t fly. They prefer to hide in vegetation, since being unable to fly leaves them more vulnerable to predators (<a href=\"https:\/\/www.allaboutbirds.org\/guide\/Northern_Shoveler\/lifehistory\">All About Birds<\/a>).<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-20.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"767\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-20-1024x767.png\" alt=\"\" class=\"wp-image-7836\" style=\"aspect-ratio:1.3368421052631578;width:254px;height:auto\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-20-1024x767.png 1024w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-20-300x225.png 300w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-20-768x575.png 768w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-20.png 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 12:<\/strong> A northern shoveler chick (Picture from <a href=\"https:\/\/macaulaylibrary.org\/asset\/66343351\">DigiBirdTrek CA<\/a>)<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">More Males than Females?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A study in the United Kingdom has found that there are significantly more adult male northern shovelers than females (Wood et al., 2021). A whopping 72% of captured adults were male! To top it all off, the proportion of males has increased linearly over time. Since 1968-1969, the skew towards males has increased in adults. Newly hatched chicks and juveniles during their first winter have a mostly even sex balance (Blums P., Mednis A., 1996), so where does the imbalance come from in adults?&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There could be something affecting the death rate of adult female ducks. They may be more vulnerable to predators while sitting on the eggs, since males don\u2019t help incubate the eggs, and juveniles in their first winter haven\u2019t bred yet. Animals like foxes, mink, raccoons, and crows like to prey on the northern shoveler or their eggs (<a href=\"https:\/\/www.ebsco.com\/research-starters\/zoology\/northern-shoveler\/\">EBSCO<\/a>). These interactions with predators could put the females at a higher risk of being eaten or killed than their male counterparts.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-17.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-17-1024x1024.png\" alt=\"\" class=\"wp-image-7832\" style=\"aspect-ratio:1;width:321px;height:auto\" srcset=\"https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-17-1024x1024.png 1024w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-17-300x300.png 300w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-17-150x150.png 150w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-17-768x768.png 768w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-17-590x590.png 590w, https:\/\/wordpress.viu.ca\/biol325\/files\/2026\/10\/image-17.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Figure 13:<\/strong> A male northern shoveler. (Picture from <a href=\"https:\/\/stlzoo.org\/animals\/birds\/waterfowl\/northern-shoveler\">Saint Louis Zoo<\/a>)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<p class=\"wp-block-paragraph\">Next time you\u2019re out looking at ducks in your local pond, keep an eye out for these unique and recognizable birds! Sit down and watch them rooting through the mud, paddling around, or even spinning a whirlpool. Hopefully you have a new found appreciation for the amazing northern shoveler.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">References<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Amor Abda, W., Merzoug, S., Belhamra, M., &amp; Houhamdi, M. (2015). Phenology and diurnal behaviour of the northern shoveler<em>anas clypeata<\/em>in the Guerbes-Sanhadja Wetland Complex (north-eastern Algeria). <em>Zoology and Ecology<\/em>, 1\u20137. <a href=\"https:\/\/doi.org\/10.1080\/21658005.2014.994361\">https:\/\/doi.org\/10.1080\/21658005.2014.994361<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Blums, P., &amp; Mednis, A. (1996). Secondary sex ratio in anatinae. <em>The Auk<\/em>, <em>113<\/em>(2). <a href=\"https:\/\/digitalcommons.usf.edu\/cgi\/viewcontent.cgi?article=22967&amp;context=auk\">https:\/\/digitalcommons.usf.edu\/cgi\/viewcontent.cgi?article=22967&amp;context=auk<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Historic hatching: Northern shoveler ducklings<\/em>. Smithsonian\u2019s National Zoo and Conservation Biology Institute. (2025, July 14). <a href=\"https:\/\/nationalzoo.si.edu\/animals\/news\/historic-hatching-northern-shoveler-ducklings\">https:\/\/nationalzoo.si.edu\/animals\/news\/historic-hatching-northern-shoveler-ducklings<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jordan, L. (2014, January 29). <em>Mating and feeding behavior of the northern shoveler<\/em>. 10,000 Birds. <a href=\"https:\/\/www.10000birds.com\/mating-and-feeding-behavior-of-the-northern-shoveler.htm\">https:\/\/www.10000birds.com\/mating-and-feeding-behavior-of-the-northern-shoveler.htm<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Moreau, A., Rousseau, C., Bocher, P., Dupuy, C., &amp; Farau, S. (2024). Home range sizes and nychthemeral habitat uses by the Northern Shoveler (Spatula clypeata) on prenuptial stopovers in Vend\u00e9e marshes, western France. <em>Ornis Fennica, 101<\/em>(1), 62-75. <a href=\"https:\/\/www.proquest.com\/scholarly-journals\/home-range-sizes-nychthemeral-habitat-uses\/docview\/3144139875\/se-2\u00a0\">https:\/\/www.proquest.com\/scholarly-journals\/home-range-sizes-nychthemeral-habitat-uses\/docview\/3144139875\/se-2\u00a0<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Northern Shoveler (Anas clypeata): U.S. Fish &amp; Wildlife Service<\/em>. FWS.gov. (n.d.). <a href=\"https:\/\/www.fws.gov\/species\/northern-shoveler-anas-clypeata\">https:\/\/www.fws.gov\/species\/northern-shoveler-anas-clypeata<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Northern Shoveler<\/em>. Audubon. (2026, October 2). <a href=\"https:\/\/www.audubon.org\/field-guide\/bird\/northern-shoveler\">https:\/\/www.audubon.org\/field-guide\/bird\/northern-shoveler<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Northern shoveler identification. <\/em>All About Birds. (n.d.). <a href=\"https:\/\/www.allaboutbirds.org\/guide\/Northern_Shoveler\/id\">https:\/\/www.allaboutbirds.org\/guide\/Northern_Shoveler\/id<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Northern shoveler life history.<\/em> All About Birds. (n.d.)<em>.<\/em> <a href=\"https:\/\/www.allaboutbirds.org\/guide\/Northern_Shoveler\/lifehistory\">https:\/\/www.allaboutbirds.org\/guide\/Northern_Shoveler\/lifehistory<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Northern Shoveler. <\/em>Smithsonian\u2019s National Zoo and Conservation Biology Institute. (n.d.).<em> <\/em><a href=\"https:\/\/nationalzoo.si.edu\/animals\/northern-shoveler\">https:\/\/nationalzoo.si.edu\/animals\/northern-shoveler<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Northern shoveler (Spatula clypeata)<\/em>. Canada.ca. (n.d.). <a href=\"https:\/\/wildlife-species.canada.ca\/bird-status\/oiseau-bird-eng.aspx?sY=2019&amp;sL=e&amp;sM=c&amp;sB=NSHO\">https:\/\/wildlife-species.canada.ca\/bird-status\/oiseau-bird-eng.aspx?sY=2019&amp;sL=e&amp;sM=c&amp;sB=NSHO<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Northern shoveler: Zoology<\/em>. EBSCO. (2020). <a href=\"https:\/\/www.ebsco.com\/research-starters\/zoology\/northern-shoveler\/\">https:\/\/www.ebsco.com\/research-starters\/zoology\/northern-shoveler\/<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Roos-Mu\u00f1oz, S., Cruz-Acevedo, E., Castillo-Guerrero, J. A., Torres-Bugarin, O., del R\u00edo-Zaragoza, O. B., Garc\u00eda-Hernandez, J., Aguilar-Zarate, G., Danemann, G. D., &amp; Betancourt-Lozano, M. (2026). Multi-tissue contamination (Mercury, lead, and organochlorine pesticides) and health biomarkers in northern shoveler and northern pintail during wintering. <em>Environmental Management<\/em>, <em>76<\/em>(6). <a href=\"https:\/\/doi.org\/10.1007\/s00267-026-02504-2\">https:\/\/doi.org\/10.1007\/s00267-026-02504-2<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Szab\u00f3, B., Szab\u00f3, A., Vad, C. F., Boros, E., Luki\u0107, D., Ptacnik, R., M\u00e1rton, Z., &amp; Horv\u00e1th, Z. (2022). Microbial stowaways: Waterbirds as dispersal vectors of aquatic pro\u2010 and Microeukaryotic Communities. <em>Journal of Biogeography<\/em>, <em>49<\/em>(7), 1286\u20131298. <a href=\"https:\/\/doi.org\/10.1111\/jbi.14381\">https:\/\/doi.org\/10.1111\/jbi.14381<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>The IUCN red list of threatened species<\/em>. IUCN Red List of Threatened Species. (n.d.). <a href=\"https:\/\/www.iucnredlist.org\/species\/22680247\/153875944\">https:\/\/www.iucnredlist.org\/species\/22680247\/153875944<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wood, K. A., Brides, K., Durham, M. E., &amp; Hearn, R. D. (2021). Adults have more male-biased sex ratios than first-winter juveniles in wintering duck populations. <em>Avian Research, 12<\/em>, 1-15. <a href=\"https:\/\/doi.org\/10.1186\/s40657-021-00286-1\u00a0\">https:\/\/doi.org\/10.1186\/s40657-021-00286-1<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The northern shoveler (Spatula clypeata) is a common bird with a unique appearance that makes them easily recognizable. Considering their heads are always down, sifting through the water for food, [&hellip;]<\/p>\n","protected":false},"author":6322,"featured_media":7827,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7824","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/posts\/7824","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/users\/6322"}],"replies":[{"embeddable":true,"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/comments?post=7824"}],"version-history":[{"count":9,"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/posts\/7824\/revisions"}],"predecessor-version":[{"id":7898,"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/posts\/7824\/revisions\/7898"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/media\/7827"}],"wp:attachment":[{"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/media?parent=7824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/categories?post=7824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wordpress.viu.ca\/biol325\/wp-json\/wp\/v2\/tags?post=7824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}