Rufous Hummingbirds at Bosque del Apache N.W.R., New Mexico
After consulting Sheri Willimson's Hummingbird of North America here is my best stab ageing and sexing these birds.
I consider myself weak in ID'ing immature western hummingbirds (i.e feel free to correct any errors).
Immatures
Another immature Rufous Hummingbird
An adult with an immature
All photographs by Victor W. Fazio III (Part of the AVES.NET PHOTOGRAPHIC INDEX).
All these images are digital stills (0.84 megapixel) off a Sony TRV340 25x camcorder (usually with 2x teleconverter attached = 1750 mm lens).
