2016年12月5日 · American Wigeon is structurally and behaviourally very similar. Males differ in having pinkish flanks, a white forehead stripe, and a larger and more obvious iridescent green patch behind the eye. Males differ in having pinkish flanks, a white forehead stripe, and a larger and more obvious iridescent green patch behind the eye.

2006年1月23日 · Hi all, Some local birders were pretty excited to see this alleged Eurasian Wigeon south of San Francisco, California, but I'm not convinced it's not a hybrid American X Eurasian, as it exhibits the darker eye and buffier cheeks as shown in Sibley's desk ref.s drawing of the hybrid. It was...

2020年12月28日 · For Eurasian Wigeon adult female it states 'Upper wing-coverts dark grey-brown, contrastingly edged white at tips, occasionally faintly barred and laterally suffused buff. Outer web of greater coverts tipped black (narrower than adult ♂) , narrowly bordered white subterminally, often edged white at tip .'

2011年12月13日 · Female Eurasian wigeon come are quite variable in colour with grey brown and rich brown colour phases, but as this bird is an adult I would have expected the size difference between wigeon and American wigeon to be noticable. I would plump for a Eurasian bird , but as Chris says its hard to be sure without seeing the underwing.

2019年3月21日 · Female: belly white, breast and flanks are light brown (or rust-orange) in contrast to grey neck and head, which mostly shows darker mask around the eye than Eurasian Wigeon. White axillaries and underwing middle coverts as in male; upperside of wing with very dark speculum, brownish-grey secondary coverts that most often are whitish at the ...

2023年1月26日 · But if you search pics with male wigeon, tail length appears quite variable. And as you know, it acctually has a longer (and pointed) tail than other dabbling ducks except for pintail. since bill doesn't show any difference in shape and colouring to penelope (as is most of its plumage) I'd guess this is a more or less pure Eurasian Wigeon.

2005年3月23日 · Saw this female Wigeon today at Bowling Green Marsh. Very much like an Eurasian Wigeon except for a perfectly formed teardrop shaped white eye ring on both eyes. Overall plumage is also slightly different from the females. Have checked the guides and can not think of anything other than a...

2004年7月19日 · Dear all, While searching through my videos from last year I found film of a drake Wigeon I saw at Oare Marshes in Kent in March 2003 on several occasions. The face showed a broad bottle-green stripe running down the cheeks and terminating down the side of the neck. This was most evident when...

2008年2月16日 · I saw this wigeon today at Paxton pits near St Neots. Cambs I think it might be an Eurasian/American wigeon hybrid? but would welcome opinions.

2015年1月12日 · I'll admit that I've no experience with wigeon outside of the US, but in the US American Wigeons will generally always show this clear demarcation between the rufous flanks and the grayer flanks, while birds ID'd as Eurasian lack that clear demarcation.