Summary ²

The Allen's Hummingbird (Selasphorus sasin) is a species of hummingbird. The Allen's Hummingbird is a small bird, with mature adults reaching only 3 to 3½ inches (75 to 90 mm) in length. The male Allen's has a green back and forehead, with rust-colored rufous flanks, rump, and tail. The male's throat is also an iridescent orange-red. The female and immature Allen's Hummingbirds are similarly colored, but lack the iridescent throat patch, instead having a series of speckles...

Sources and Credits

1. (c) Jason Stuck, some rights reserved (CC BY-NC-ND), http://www.flickr.com/photos/70376470@N00/88506059
2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Selasphorus_sasin

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