During spring migration, we'll see 20 or more robins in the yard. The older bright red-chested males start the migration back north for the breeding season. Within a short time, the pale-colored females arrive and eventually the one-year-old birds arrive. As the flocks fly north, they break off into smaller parties. We usually have a couple of nesting robins in our yard during the breeding season.
As everyone knows, robins are particularly fond of worms. Although it appears they cock their heads to listen for worms, the fact is, they are hunting by sight.
Their nests are grass and twigs molded together with mud to form a large cup or saucer. To see a picture of a robin with nest materials, go to About Nest Materials.