Photo: Bank Swallow returns to its colony

715 of 1342

Bank Swallows are migratory birds, with a large range that stretches from Canada down into Chile and Argentina. They burrow nests into vertical cliffs and banks, and may make colonies with up to 2,000 nests according to The Cornell Lab of Ornithology.

Would you like to see your nature photo featured as the TreeHugger photo of the day? Join the TreeHugger Reader Photo Pool on Flickr and add your pictures to the group!

715 of 1342

More Slideshows