During the fall migration and in winter, chickadees often flock together.

The fall migration of snow geese, amongst other species, is most spectacular.

But officials were glad the spill was not larger, and that it did not come during the fall migration of birds.

During fall migration, there is an abundance of birds when adults and young are present.

They eat mostly berries while on the fall migration in Canada.

During the fall migrations, the skies were filled with waterfowl.

The fall migration of the Rockfish seems to be picking up, and the fish are moving further south into the area.

Young birds grow quickly in the short, lush summer, and prepare for the fall migration.

During the fall migration, sandpipers came to feed in the new mud flats.

The fall migration of flounder has started, he said, and thousands of the fish have been killed.