[cobirds] Boulder - Gulls

At Teller Lake #5 there are a good number of gulls feeding on the dead fish. Among the 2oo or so Ring-billed Gulls were 15 Herrings, 2 Lesser Black-backs (1 adult and 1 3^rd cycle),  2 Thayer’s Gulls (1 adult and 1 1^st cycle) and a 1^st cycle Great Black-backed Gull.  There was also a nice adult Thayer’s Gull at Prince Lake #1 standing on the ice.

 

JWV