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 Scaup Aythya marila. 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. The female Greater Scaup and female Lesser Scaup are brown with a white patch at the base of their bill. Lesser Scaup Aythya affinis. 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. C Image D is a close-up showing head detail. The third species is the New Zealand scaup (A. novaeseelandiae). Find the perfect lesser scaup stock photo. Lesser Scaup - Length: 16 inches Wing span: 25 inches. My first impression was greater scaup, but not sure. 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. Watch Queue Queue Tight-knit groups of Lesser Scaup congregate on large lakes, reservoirs, and estuaries during migration and winter, sometimes by the thousands. First, this does nothing to help us with the females. 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. The open water that had been packed with waterfowl was relatively quiet and I saw lots of ducks out in the agricultural fields nearby. The Greater Scaup averages about 10% longer and 20% heavier than the Lesser Scaup. Evening, sunset. 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. Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. GA This article has been rated as GA-Class on the project's quality scale. Greater and lesser scaups appear nearly identical in the field but they have some subtle differences. Lesser Scaups average about 10% shorter and 25% lighter than Greater Scaups. No need to register, buy now! 1) Seen at Burnaby Lake (Vancouver BC) on March 23rd 2019. Mortality from collisions with power lines and wind turbines. Dr. Drew Lanham taught this Palmetto Pro Birder class for SCWF at Huntington Beach State Park in January, 2017. Greater Scaup were noted on 14 of those checklists, with all but one checklist reporting a single bird. See more ideas about Waterfowl, Duck hunting, Birds. The white wing stripe extends into the primaries. 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. Having trouble distinguishing between greater and lesser scaups. The Lesser has a peaked, angular head that the Greater lacks. 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. Today we saw our first northern shovelers of the season (boldly colored ducks with enormous bills), and a belted kingfisher. Greater and Lesser Scaups can be difficult to distinguish in the field. From afar flocks might just look like floating mats of vegetation on the water. At this time of year, most ducks are readily identified based on size, plumage, behavior, voice, and/or habitat. Corey November 16, 2011 at 7:55 am @Jochen: I don’t see it – what bird are you referring to? There are, however, a number of differences. The female also has a white semi-circle at the base of the beak. Appearance. The Greater and Lesser Scaup can be difficult to distinguish in the field. From afar flocks might just look like floating mats of vegetation on the water. 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. The male Tufted Duck and Ring-necked Duck differ from the Scaup by having a … The more northerly of our two scaup species, the Greater is also found across northern Europe and Asia. First a side-by-side comparison of Greater and Lesser Scaup. 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. One Lesser in the third picture from above, I reckon? Drakes of both species appear similar from afar, with dark heads, white flanks, and gray backs. LESSER VS. Images A-F are of a pair of male Lesser Scaup present at Griffin Park in Bowling Green on 8 and 9 January 2007. This video is unavailable. Take your time to study it, and submit your answer in the comments section! scaup (plural scaups or scaup) Any of three species of small diving duck in the genus Aythya. 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. There are several problems with this method. Watch Queue Queue. Gregarious in winter over large parts of the U.S., the abundant Lesser Scaup breeds primarily in boreal forest regions of Canada. Females are brown with white patches around their blue bills. Again, very nice shots! Views: 288 S. SteveClifton Well-known member. Scaup populations have steadily declined since the 1980s. 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). Females are brown overall, grayer on body in winter, with white patch at base of bill and yellow eye. 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. The Lesser Scaup has a peaked, angular head that the Greater Scaup lacks. Lesser scaup are estimated to constitute roughly 89 percent of the continental scaup population. The barring does not appear to be spreading into the … 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. Scaup populations have steadily declined since the 1980s. 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 Traditionally, lesser scaup (a.k.a. Greater and lesser scaup are counted together, because they are difficult to distinguish during aerial surveys. Greater scaup are estimated to constitute roughly 11 percent of the continental scaup population. This is also borne out in Minnesota eBird records for the two: lesser scaup vs. greater scaup. The male Greater Scaup in eclipse and male Lesser Scaup in eclipse have a much duller and brownish plumage. Derived terms . 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. For information on upcoming classes and events, please visit our … 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. In the Greater Scaup, the white extends into the primaries. 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. Then a pop quiz of an unidentified Scaup species. Comparison of Lesser and Greater Scaup Photos and text by David Roemer . Winter flocks on coastal bays may number in the thousands. 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. Nests are parasitized by redheads and other waterfowl. Female scaup body condition has declined since the 1980’s, resulting in reduced reproductive success and population decline (Anteau and Afton 2004). Greater vs Lesser Scaup - Minnesota, USA Bird Identification Q&A. I am keeping a 2014 bird list (also available from the page links at the top of the blog). See the comparative range maps: lesser scaup vs. greater scaup. BirdForum - The net's largest birding community, dedicated to wild birds 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 migrate late in the season, when lakes freeze, and travel nocturnally in flocks. The diet is composed mainly of clams. Alternative form of scalp; a bed or stratum of shellfish. Seen in flight, the white on the Lesser Scaup's wings fades to gray in the primaries. 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. 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. Apr 14, 2020 - Explore Barbara Nowakowski's board "Scaup" on Pinterest. Male and female Lesser Scaup at Woodlake Pond in Carrollton, Texas. 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. Size is one, as lesser scaup are about 20 percent smaller than greater scaup. The greater scaup is also slightly larger and has a flatter top of the head. Lesser and greater scaup are counted together in annual aerial surveys because the two species are hard to distinguish at a distance. 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. Please do not substitute this template. Lesser and greater scaup are counted together, because they are difficult to distinguish during aerial surveys.
2020 greater scaup vs lesser scaup female