areas, such as the treed edges of bogs, fens, marshes, ponds,
or islands. Breeds in boreal forest across
southern Alaska and much of interior western Canada, as
far east as central Quebec.
During the breeding season, it is largely insectivorous.
It also gathers in large numbers to feed on the eggs of spawning salmon
The adult has grey upperparts and white underparts; its wingtips are
black above and pale below. In breeding plumage, it has a slaty black
hood, which it loses in non-breeding plumage. Its short, thin bill is
black, and its legs are orangish-red.
Notes on Gull identification
The breeding season begins in mid-June. Courting pairs perform
swooping display flights, calling loudly and diving at each other, and
then drop down to perch on a branch. Crouched and facing each other,
with neck and crown feathers erected and wings slightly raised, they
scream at each other with bills opened wide, bobbing up and down as
they do so. This display can continue for several minutes before ending
abruptly; afterwards, the birds may sit quietly together for some time
before separating again.
2-4. Pale to medium green, olive or buff, and may be variably
marked with spots, blotches, or scrawls of brown, grey, violet, or black