I used to associate gulls with the coast but that is typically only winter. In the fall these Franklin Gulls lose their black heads and start wearing this dusky hood as their non-breeding plumage. The majority of birds nest in the northern Prairies of Alberta, Saskatchewan and Manitoba and then head south to the coast of Chile to winter. They will move in very large flocks picking through fields looking for insects and worms after the soil has been tilled or the grain is cut like this scene.