Very Dark Gulls...

Very Dark Gulls...

Observation - Very Dark Gulls... - UK and Ireland. Description: These admittedly not great pictures were taken as a large group of Black-headed Gulls were startled and took off. I didn't notice these other two birds at the time. They are very dark, more than I'd expect for Black-backed juveniles, but I can't think w

These admittedly not great pictures were taken as a large group of Black-headed Gulls were startled and took off. I didn't notice these other two birds at the time. They are very dark, more than I'd expect for Black-backed juveniles, but I can't think what else they'd be. They're much bigger than their Black-headed mates.