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The only ducks which are similar are the greater scaup and lesser scaup, but these species have no tuft and a different call. The tufted duck is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds applies. [11] Refer to the following table for measurements of the tufted duck: [12]
A tufted duck in flight showing the white wingbar. The species are plump, compact, medium-sized ducks ranging from 37–61 cm long, 60–84 cm wingspan, and weighing 410–1600 g, with canvasback the largest, and ring-necked duck and ferruginous duck marginally the smallest.
Cornell University is a private Ivy League land-grant research university based in Ithaca, New York, United States. The university was founded in 1865 by Ezra Cornell and Andrew Dickson White. Since its founding, Cornell has been a co-educational and nonsectarian institution. As of fall 2024, the student body included 16,128 undergraduate and ...
The northward flow peaked on May 1, when nearly 2 million nighttime travelers passed through the area, according to the BirdCast dashboard managed by the Cornell Lab at Cornell University ...
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Robert C. Hockett is an American lawyer, law professor, and policy advocate.He holds two positions at Cornell University (the Edward Cornell Professor of Law at Cornell Law School and a Professor of Public Affairs), is senior counsel at investment firm Westwood Capital, LLC, [1] and was a Fellow at The Century Foundation think tank.
Anatidae includes the ducks and most duck-like waterfowl, such as geese and swans. These birds are adapted to an aquatic existence with webbed feet, flattened bills, and feathers that are excellent at shedding water due to an oily coating. Northern shoveler, Spatula clypeata (A) Eurasian wigeon, Mareca penelope (A) American wigeon, Mareca ...
Hybrids between lesser scaup and ring-necked ducks are recognizable by very dark wings contrasting with a light grey underside more than in the lesser scaup but less than in the ring-necked duck. Hybrids between the lesser scaup and the redhead (A. americana) are recognizable by the lack of contrast between wings and belly and the dull brownish ...