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Two more large white-headed gulls from N. Oman (2 Viewers)
- Thread starter Momo
- Start date
lou salomon
the birdonist
not at all obvious, C.
i think they are heuglini but there's hardly anything separating it from steppe gull in this plumage. the late moulting p10 in the first bird is a good pointer towards the northern heuglini (as is the small p10 mirror, black on primary coverts, slight boa (striation in lower hind neck) and black down to p3.
all these i can't make out in the 2nd bird but on mantle shade i tend towards siberian gull (heuglini) here too.
i think they are heuglini but there's hardly anything separating it from steppe gull in this plumage. the late moulting p10 in the first bird is a good pointer towards the northern heuglini (as is the small p10 mirror, black on primary coverts, slight boa (striation in lower hind neck) and black down to p3.
all these i can't make out in the 2nd bird but on mantle shade i tend towards siberian gull (heuglini) here too.
Thank you, Lou. I thought Heuglini for the first too, but am not at all sure about the second. It seems to have one rather short p10, but the other primaries look worn to me. Both birds were isolated from the nearby Steppe Gulls, so hard to get a direct comparison, but they looked relatively dark-backed in the field.
Christopher
Christopher
