MONGOLIAN YELLOW-LEGGED GULLS, L.c.mongolicus

all photos courtesy of Dick Newell, copyright 1997
Lake Baikal, Siberia; June 1987

Fig. 1) second summer and adult; both birds have commenced primary moult	Fig. 2) second summer; note head shape, long neck, and primary projection

Fig. 3) adult; note black down to P4 and huge trailing edge on secondaries	Fig. 4) same second summer (left) and adult (right) birds as in photo 1; note head shape