Calderdale Birds: Herring Gull

Wednesday, December 28, 2011

Argenteus of argentatus ??? need to get photo shop but you should be able to enlarge it.??

Jeff Cox said...: Tip: Click on the photo then right mouse click on the enlarged photo and select "save image as" then you can open it in whatever program you use for viewing photos.

Collins says argenteus has much black and less white on wing-tip as opposed to argentatus which has little black and much white. My guess is therefore argenteus as it's hard to say whether the back is lighter or darker grey without a reference point against which to judge.; 5:46 pm
David Sutcliffe said...: Get some more shots tomorrow Andy - so we have a comparison!! then of course the light will be different.
Nearly all the Herring Gulls we get over are above us , even at Swales so always difficult to get a shot of them from above.

Difficult one but concur with Jeff's comments (from Collins)although the head looks very dark. Not sure!; 10:39 pm

Calderdale Birds