Gulls and Terns
 Senior Member
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Join Date: Apr 2008
Location: West Cork, Ireland
Posts: 7,578
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That's also a way to ID yes - but sometimes shadows can fool you 
I've seen Arctic that were nearly impossible to tell apart from Common - then you notice that the legs are much shorter Also, the cheek patch is whiter and more marked in an Arctic.
Hope you can see these without logging in?
Arctic:
https://www.facebook.com/photo.php?f...type=3&theater
Common:
https://www.facebook.com/photo.php?f...type=3&theater
Side by side it shows some of the differences well I think
xx
I've seen Arctic that were nearly impossible to tell apart from Common - then you notice that the legs are much shorter Also, the cheek patch is whiter and more marked in an Arctic.Hope you can see these without logging in?
Arctic:
https://www.facebook.com/photo.php?f...type=3&theater
Common:
https://www.facebook.com/photo.php?f...type=3&theater
Side by side it shows some of the differences well I think
xx
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Senior Member
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Join Date: Jul 2011
Location: Hemel Hempstead, Herts
Posts: 2,149
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I do agree with shadows fooling you sometimes. No time is it ever easy IDing them. But the two images you have on FB show the differences nicely.
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Kit 1 Canon 5D MkIII Canon 100mm-400mm USM IS L Lens Canon EF 75mm-300mm Lens Sigma 70mm 300mm APO DG Macro Lens Canon F1.8 50mm Prime lens |
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 Senior Member
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Join Date: Oct 2011
Location: x
Posts: 1,050
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Your tern is defiantly a Common tern, Artics can display varying degrees of black on the bill depending on time of year.
Arctic terns have much shorter legs, and the tail streamers are longer than Common terns.
There are other differences depending on age and flight shots. A fine set of images.
Arctic terns have much shorter legs, and the tail streamers are longer than Common terns.
There are other differences depending on age and flight shots. A fine set of images.
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Senior Member
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Join Date: Jul 2011
Location: Hemel Hempstead, Herts
Posts: 2,149
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Thanks Brian I cannot ever recall seeing any Arctic Terns. I may of done but not realized so. The beaks colour differs from what i have seen from other photos. Lighter in common. I still know if you had them flying side by side maybe a couple 100 yards away i would not be able to tell the difference. Thanks for the info about legs too
I cannot ever recall seeing any Arctic Terns. I may of done but not realized so. The beaks colour differs from what i have seen from other photos. Lighter in common. I still know if you had them flying side by side maybe a couple 100 yards away i would not be able to tell the difference. Thanks for the info about legs too
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Kit 1 Canon 5D MkIII Canon 100mm-400mm USM IS L Lens Canon EF 75mm-300mm Lens Sigma 70mm 300mm APO DG Macro Lens Canon F1.8 50mm Prime lens |
Kit 2 Modified Canon 500D Canon EFS 18mm 55mm 1:3.5 - 5.6 |
Other Kit View my profile to see my other kit! |
|
My Compact/P&S: Panasonic Lumix DSC LZ7 |