[Length 3.75 in. Wingspan 4.5 in.]

This male Ruby-throated Hummingbird, showing how the gorget feathers turn black if the bird isn't facing the observer, was photographed at Santa Ana NWR, Texas, USA. Photo taken with a Nikkor EDAF 300 f4.0 lens on Kodachrome 200 film. (Date: April 2000)

[Length 3.75 in. Wingspan 4.5 in.]

This brilliant adult male Rufous Hummingbird was photographed at a feeder during fall migration in the Texas Hill Country, USA. Photo taken with a Nikkor 300mm EDAF f4 lens on Kodak EliteChrome 200 film. (Date: May 2002)

[Length 3.75 in. Wingspan 4.5 in.]

This immature male Rufous Hummingbird was photographed at Beatty's Lodge, Miller Canyon, Sierra Vista, Arizona, USA. Photo taken with a Nikkor 300mm EDAF-S VR f2.8 lens (EFL=450mm) on a Nikon D200 camera. (Date: August 8, 2007)

[Length 3.75 in. Wingspan 4.5 in.]

This immature male Rufous Hummingbird was photographed at Beatty's Lodge, Miller Canyon, Sierra Vista, Arizona, USA. Photo taken with a Nikkor 300mm EDAF-S VR f2.8 lens (EFL=450mm) on a Nikon D200 camera. (Date: August 8, 2007)

[Length 3.75 in. Wingspan 4.5 in.]

This immature male Rufous Hummingbird was photographed at Russ Pitman Park, Bellaire, Texas, USA. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens (EFL=450mm) on a Nikon D3200 camera. (Date: January 14, 2013)

[Length 3.75 in. Wingspan 4.5 in.]

This Rufous Hummingbird was photographed at Russ Pitman Park, Bellaire, Texas, USA. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens (EFL=450mm) on a Nikon D3200 camera. (Date: January 14, 2013)

[Length 3.75 in. Wingspan 4.5 in.]

This juvenile Rufous Hummingbird was photographed at the Paton's backyard, Patagonia, Arizona, USA. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC17E II 1.7x Teleconverter on a Nikon D7100 camera. (Date: July 12, 2013)

[Length 3.75 in. Wingspan 4.5 in.]

This male Rufous Hummingbird was photographed at a backyard feeder, Weslaco, Texas, USA. Photo taken with a AF-S VR Zoom-Nikkor 80-400mm f/4.5-5.6G IF-ED lens on a Nikon D7100 camera. (Date: September 7, 2014)

[Length 3.75 in. Wingspan 4.5 in.]

This male Rufous Hummingbird was photographed at a backyard feeder, Weslaco, Texas, USA. Photo taken with a AF-S VR Zoom-Nikkor 80-400mm f/4.5-5.6G IF-ED lens on a Nikon D7100 camera. (Date: September 7, 2014)