ML646316079

Dettagli dell'osservazione

Both have scapulars with slightly wider and more contrasting pale edges than Greenland. Both have white border on flank feathers wider than Greenland. In earlier photos, one has a definite pink bill while the other was orange. Both have a whitish tip on the bill. Head and neck size/shape seem comparable to each other. To tell the difference between the two, the one with the pinker bill has a dark streak on the belly then pale until a very dark belly area by the legs. The one with the orange bill had a lot more mottling of dark streaks on the belly. The pink bill one had a greyer/dustier cast to the head and neck while the orange bill one is slightly darker brown. However, I have photos of the pink bill one that appear slightly darker brown, so it might be highly dependent on lighting angle and shadows. The pink bill one has a slightly thicker (top to bottom) bill that has a straighter slope on the top of the bill, whereas the orange bill one has a slightly thinner bill (top to bottom) and has more of a bumpy profile on the top. This seems opposite of what you would expect if one was a Greenland, as the orange bill of a Greenland would also be larger and bolder, so I feel that this also skews both to Western.