http://photobiologist.com/main.php http://photobiologist.com/v/BIRDS/SMALLER+BIRDS/SWALLOWS/tswallow8098.jpg.html 797 Tree Swallow http://photobiologist.com/v/BIRDS/SMALLER+BIRDS/SWALLOWS/vgswallow9244.jpg.html 800 Violet-green Swallow http://photobiologist.com/v/BIRDS/SMALLER+BIRDS/SWALLOWS/treeswal6158.jpg.html 2105 Tree Swallow http://photobiologist.com/v/BIRDS/SMALLER+BIRDS/SWALLOWS/purpmart6926.jpg.html 2068 Purple Martins http://photobiologist.com/v/BIRDS/SMALLER+BIRDS/SWALLOWS/barnswal6166.jpg.html 1956 Barn Swallow