ML618828632
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观察细节
I am basing my ID here from the photographic evidence I was able to obtain. I have included the best image from the batch of pictures I took of this Tern as well. The bird did not move while I was viewing it so all of the images I took show the same profile. There appears to be 4 possible Tern's this could be, Arctic, Roseate, Common and Forster's. I am calling this a Forster's Tern because: 1. The legs and beak are much too long for this to be an Arctic Tern. 2. The body is too bulky for this to be a Roseate Tern. Also, while the tail is long relative to the wing length, it does not appear long enough for a Roseate Tern. 3. With respect to tail length relative to wing length, this does not appear to be a Common Tern because the tail is too long. In addition, the beak is not a bold enough orange and the primaries, while being dark gray, are not black enough for this to be a Common Tern. It is difficult from the photos to make a call on the width of the beak. Lastly, the breast and belly appear too white for this to be a Common Tern.
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- 3.83 MB