Siberian Gulls

Up To Oman February 2002

Caspian Gulls 

Typical adult Steppe Gulls have black on the primaries from P10 to P5 with a small mark on P4, a whitish tongue on the inner web of P10 up to half the way to the mirror, good contrast on the upperside between P9 and 10 and the primary coverts, a largish mirror on P10 and often on P9 too, a gentle facial expression, often with very bright softparts and a darkish iris. The plumage of barabensis appears intermediate between heuglini and cachinnans but the structure and soft part colouration are not.
The characteristics of adult heuglini overlap with those of barabensis, so it is possible that some of these birds are the former. The same can be said with respect to cachinnans.

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    March 9, 2002

    adult, wings raised with heuglini

    March 9, 2002

    adults in flight

    March 9, 2002

    adult perched and in flight

    March 7, 2002

    adult in flight

    March 8, 2002

    adults perched

 Siberian Gulls

Up To Oman February 2002

Caspian Gulls