The Lesser Scaup has a peaked, angular head that the Greater Scaup lacks. From afar flocks might just look like floating mats of vegetation on the water. Lesser scaup are estimated to constitute roughly 89 percent of the continental scaup population. Tight-knit groups of Lesser Scaup congregate on large lakes, reservoirs, and estuaries during migration and winter, sometimes by the thousands. Thus, it seems unlikely that the "Greater Scaup" in question was/were not present for their visit. Greater scaups have a light band near the trailing edges of the wings runs almost to the tip, but in lesser scaups it runs only about half way. Wikipedia describes Lesser Scaups in this way: Adults are 38–48 cm (15–19 in) long, 41.7–43 cm (16.4–16.9 in) on average. Mortality from collisions with power lines and wind turbines. Today we saw our first northern shovelers of the season (boldly colored ducks with enormous bills), and a belted kingfisher. Greater Scaup Aythya marila. The third species is the New Zealand scaup (A. novaeseelandiae). Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. This is also borne out in Minnesota eBird records for the two: lesser scaup vs. greater scaup. Dr. Drew Lanham taught this Palmetto Pro Birder class for SCWF at Huntington Beach State Park in January, 2017. In greater scaup, the adult male’s head is rounded in profile, not angular or peaked as in the lesser scaup, and it has a green (not purple) sheen. Please do not substitute this template. Jan 29, 2015 #2 Not too much to go in these images except that the extensive dark around the nail/bill tip indicates a Tufted Duck. Lesser Scaup Aythya affinis. The barring does not appear to be spreading into the … BirdForum - The net's largest birding community, dedicated to wild birds Scaup populations have steadily declined since the 1980s. The bill is bluish with a hard-to-see broad black nail at the tip, which is much wider than that of the lesser scaup. Lesser Scaup - Length: 16 inches Wing span: 25 inches. First, this does nothing to help us with the females. The white wing stripe extends into the primaries. Greater scaup is part of WikiProject Birds, an attempt at creating a standardized, informative and easy-to-use ornithological resource.If you would like to participate, visit the project page, where you can join the discussion and see a list of open tasks. The open water that had been packed with waterfowl was relatively quiet and I saw lots of ducks out in the agricultural fields nearby. Whilst this short note is not intended in any way to be an identification article the following points may be helpful to birders coming across male Lesser Scaups for the first time. GREATER SCAUP BY PIERRE DEVICHE, PHOENIX, AZ 85048, DEVICHE@ASU.EDU Winter in Arizona is the season to search for and study the many northern-breeding ducks that overwinter in this region. Greater and Lesser Scaups can be difficult to distinguish in the field. This video is unavailable. blue bill) have been one of the most abundant ducks in North America; however, over the last 20 years, the duck population has spiraled downward. Greater and lesser scaup are counted together, because they are difficult to distinguish during aerial surveys. Traditionally, lesser scaup (a.k.a. Greater and lesser scaups appear nearly identical in the field but they have some subtle differences. The Lesser has a peaked, angular head that the Greater lacks. Views: 288 S. SteveClifton Well-known member. A closer look reveals black-and-white males and chocolatey-brown females floating on the surface and diving below to eat aquatic invertebrates and plants. Lesser Scaups average about 10% shorter and 25% lighter than Greater Scaups. Appearance. The female also has a white semi-circle at the base of the beak. Apr 14, 2020 - Explore Barbara Nowakowski's board "Scaup" on Pinterest. Lesser vs Greater Scaup Took a run out and about today to see if the strong south winds we've been having for the last 24 hours brought anything new in to the area. The Greater and Lesser Scaup can be difficult to distinguish in the field. The greater scaup (Aythya marila), just scaup in Europe or, colloquially, "bluebill" in North America, is a mid-sized diving duck, larger than the closely related lesser scaup.It spends the summer months breeding in Alaska, northern Canada, Siberia, and the northernmost reaches of Europe.During the winter, it migrates south to the coasts of North America, Europe, and Japan. Females are brown with white patches around their blue bills. Greater scaup are estimated to constitute roughly 11 percent of the continental scaup population. Over the years I have repeatedly heard that head color is a great way to separate the male scaup species; blue for Lesser Scaup (LESC) and green for Greater Scaup (GRSC). Scaup populations have steadily declined since the 1980s. Lesser Scaup migrate late in the season, when lakes freeze, and travel nocturnally in flocks. Lesser and greater scaup are counted together, because they are difficult to distinguish during aerial surveys. Having trouble distinguishing between greater and lesser scaups. Comparison of Lesser and Greater Scaup Photos and text by David Roemer . The Greater Scaup averages about 10% longer and 20% heavier than the Lesser Scaup. Lesser Scaup Aythya affinis Bolsa Chica Wetland, California: 14 March 2005 Both Lesser and Greater Scaups winter in Southern California, and can be difficult to separate. LESSER VS. Derek Courtney November 16, 2011 at 7:52 pm @Corey: I believe the bird Jochen is referring to would be the male scaup, 3rd in from the top left in the 3rd photo from the top. I am keeping a 2014 bird list (also available from the page links at the top of the blog). Originally published December 10, 2016. by Greg Hanisek, editor of The Connecticut Warbler Where To Find Them: Both species can be found in saltwater and freshwater, although neither is numerous on freshwater in Connecticut. The male Tufted Duck and Ring-necked Duck differ from the Scaup by having a … At this time of year, most ducks are readily identified based on size, plumage, behavior, voice, and/or habitat. 2009 March 29, Deborah Baldwin, “A Waterside Village With a Big-City Backdrop”, in New York Times‎: Or spot gaggles of Canada geese, ducks and scaups flying over schools of bluefish. A B Images B and C show the typical Lesser Scaup head shape with pointed rear crown and how head color can vary from purple to green gloss depending on angle. In the Greater Scaup, the white extends into the primaries. Seen in flight, the white on the Lesser Scaup's wings fades to gray in the primaries. The greater scaup is also slightly larger and has a flatter top of the head. Take your time to study it, and submit your answer in the comments section! Michael J. Anteau, Jean-Michel DeVink, David N. Koons, Jane E. Austin, Christine M. Custer, and Alan D. Afton Version: 1.0 — Published March 4, 2020 Then a pop quiz of an unidentified Scaup species. 1) Seen at Burnaby Lake (Vancouver BC) on March 23rd 2019. Evening, sunset. My first impression was greater scaup, but not sure. Very similar to Lesser Scaup; note smoothly rounded head without tall peak, puffier cheeks, more extensive white stripe on wing in flight, and larger, broader bill. GA This article has been rated as GA-Class on the project's quality scale. See more ideas about Waterfowl, Duck hunting, Birds. There are several problems with this method. Alternative form of scalp; a bed or stratum of shellfish. Drakes of both species appear similar from afar, with dark heads, white flanks, and gray backs. Size is one, as lesser scaup are about 20 percent smaller than greater scaup. Lesser and greater scaup are counted together in annual aerial surveys because the two species are hard to distinguish at a distance. One Lesser in the third picture from above, I reckon? Females are brown overall, grayer on body in winter, with white patch at base of bill and yellow eye. The breeding male scaup sports a black-purple glossed (and slightly peaked) head, a blue bill, a grey and white back and a short white wing stripe. See the comparative range maps: lesser scaup vs. greater scaup. Gregarious in winter over large parts of the U.S., the abundant Lesser Scaup breeds primarily in boreal forest regions of Canada. Derived terms . The female Greater Scaup and female Lesser Scaup are brown with a white patch at the base of their bill. C Image D is a close-up showing head detail. In flight, the white stripe on the rear of the wing extends almost to the wingtip in the greater scaup and only halfway in the lesser scaup. scaup (plural scaups or scaup) Any of three species of small diving duck in the genus Aythya. No need to register, buy now! Greater Scaup were noted on 14 of those checklists, with all but one checklist reporting a single bird. Winter flocks on coastal bays may number in the thousands. The male Greater Scaup in eclipse and male Lesser Scaup in eclipse have a much duller and brownish plumage. Find the perfect lesser scaup stock photo. First a side-by-side comparison of Greater and Lesser Scaup. Tight-knit groups of Lesser Scaup congregate on large lakes, reservoirs, and estuaries during migration and winter, sometimes by the thousands. Female scaup body condition has declined since the 1980’s, resulting in reduced reproductive success and population decline (Anteau and Afton 2004). There are, however, a number of differences. The diet is composed mainly of clams. Images A-F are of a pair of male Lesser Scaup present at Griffin Park in Bowling Green on 8 and 9 January 2007. Corey November 16, 2011 at 7:55 am @Jochen: I don’t see it – what bird are you referring to? Watch Queue Queue. A closer look reveals black-and-white males and chocolatey-brown females floating on the surface and diving below to eat aquatic invertebrates and plants. Watch Queue Queue The more northerly of our two scaup species, the Greater is also found across northern Europe and Asia. From afar flocks might just look like floating mats of vegetation on the water. Again, very nice shots! Male and female Lesser Scaup at Woodlake Pond in Carrollton, Texas. Nests are parasitized by redheads and other waterfowl. For information on upcoming classes and events, please visit our … Greater vs Lesser Scaup - Minnesota, USA Bird Identification Q&A.

greater scaup vs lesser scaup female

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