[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)

[Length 3.75 in. Wingspan 4.5 in.]

This adult male Rufous Hummingbird was photographed at a feeder during fall migration in the Texas Hill Country, USA. Photo taken with a Nikkor EDAF 180 f2.8 lens on Kodachrome 200 film. (Date: May 2002)

[Length 4 in. Wingspan ?? in.]

This Rufous-tailed Hummingbird was photographed at Pipeline Road Discovery Center, Gamboa, Panama. Photo taken with a AF-S VR Zoom-Nikkor 70-300mm f/4.5-5.6G IF-ED lens (EFL=202mm) on a Nikon D7000 camera. (Date: August 7, 2011)

[Length 4 in. Wingspan ?? in.]

This Snowy-bellied Hummingbird was photographed at the Canopy Lodge Birding Facility, El Valle de Anton, Panama. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens (EFL=450mm) on a Nikon D7000 camera. (Date: August 10, 2011)

[Length 4 in. Wingspan ?? in.]

This Snowy-bellied Hummingbird was photographed at the Canopy Lodge Birding Facility, El Valle de Anton, Panama. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens (EFL=450mm) on a Nikon D7000 camera. (Date: August 10, 2011)