Andy Kapinos with the Maine Audubon teaches us all about Bonaparte's gull ... a distinct black face and white body. But Kapinos says you'll see a lot of juveniles in Maine in the fall, migrating ...

This is the common and familiar “sea­gull” across much of North ... scaly upperparts; back usually becomes pale gray by late fall. White head and underparts with coarse dark spots and ...

THE survey of the black-headed gull (Larus ribibundus) carried out by P. D. Hollom, with the help of 160 other observers for the British Trust for Ornithology (British Birds, Jan. 1939), gives a ...