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| Caspian Gulls http://lbcarchive.co.uk/forum/viewtopic.php?f=3&t=12820 |
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| Author: | John Clarkson [ Fri Aug 20, 2010 9:13 pm ] |
| Post subject: | Caspian Gulls |
Yesterday at Kirkby-on-Bain Pits we identified two adult Caspian Gulls in 3 hours of searching. The first was seen only sitting on the water until it flew rapidly away giving us no adequate view of it wing pattern, and thus we did not see its legs or any of those standing features illustrated in the guides. However, it showed a long narrow bill, small head and a dark eye in comparison to the Herring Gulls in the vicinity and it was, perhaps a shade darker? though it spent all of the observation time on its own http://www.lincsbirds.co.uk/album/displ ... pos=-13069 The second bird seemed a little shorter in the bill but again showed a relatively small head and again was maybe a little darker than Herring Gulls. However, this bird had the decency to open its wings and show a couple of pretty conclusive features. The bird has moulted P7 and P8 but P5 shows a clear black bar and on the outer primaries P9 and P10 the distinctive long white 'tongues' can clearly be seen. http://www.lincsbirds.co.uk/album/displ ... pos=-13068 http://www.lincsbirds.co.uk/album/displ ... pos=-13067 These are difficult birds to identify with confidence and we'd appreciate any constructive comments. Also present 2 Ad Yellow=legged Gulls John with Phil, Rick and Rob |
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| Author: | Edmund Mackrill [ Sat Aug 21, 2010 7:30 am ] |
| Post subject: | Re: Caspian Gulls |
For birds sitting on the water I think you've said it all John - it's not that easy is it? Now for the non-adult birds!! Actually in my experience an adult Caspian can have an apple green tint to the yellow of the bill which is perhaps more noticable when amongs adult Herring Gulls although the last one I saw at Kirkby had a noticably greenish hue to its bill. |
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| Author: | John Clarkson [ Sat Aug 21, 2010 9:42 am ] |
| Post subject: | Re: Caspian Gulls |
Graham put me on to this excellent site for gulls. It's got lots of Caspian pics. http://www.birdersplayground.co.uk/Gull ... -%201.html John |
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| Author: | Stephen Routledge [ Sun Aug 22, 2010 7:09 am ] |
| Post subject: | Re: Caspian Gulls |
Try this site also: http://gulldk.blogspot.com it has videos of various ages of Caspo's. Steve. |
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