[Length 5.5 in. Wingspan 9.5 in.]

This Blue-headed Vireo was photographed at the SPI Convention Center gardens, South Padre Island, Texas, USA. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC14E II 1.4x Teleconverter (EFL=630mm) on a Nikon D300 camera. (Date: October 1, 2010)

[Length 5.5 in. Wingspan 9.5 in.]

This Blue-headed Vireo was photographed at the Valley Land Fund's Sheepshead Lots, South Padre Island, Texas, USA. Photo taken with a AF-S VR Zoom-Nikkor 70-300mm f/4.5-5.6G IF-ED lens (EFL=450mm) on a Nikon D300 camera. (Date: April 18, 2011)

[Length 5.5 in. Wingspan 9.5 in.]

This Blue-headed Vireo was photographed at Anzalduas County Park, Mission, 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: January 3, 2014)

[Length 5.5 in. Wingspan 9.5 in.]

This Blue-headed Vireo was photographed at Anzalduas County Park, Mission, 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: January 3, 2014)

[Length 5.5 in. Wingspan 8 in.]

This Gray Vireo was photographed at McKittrick Canyon in Guadalupe Mountains National Park, Texas, USA. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: May 1993)

[Length 5.5 in. Wingspan 8 in.]

This Gray Vireo was photographed at McKittrick Canyon in Guadalupe Mountains National Park, Texas, USA. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: May 1993)

[Length 5.5 in. Wingspan 8 in.]

This Gray Vireo was photographed at McKittrick Canyon in Guadalupe Mountains National Park, Texas, USA. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: May 1993)

[Length 5 in. Wingspan 8 in.]

This Hutton's Vireo was photographed at Migelito Park, Lompoc, California, 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: June 29, 2013)

[Length 5 in. Wingspan 8 in.]

Hutton's Vireos breed along the west coast of Canada and the US from southwestern British Columbia to southern California, and in the mountains and foothills of southeastern Arizona, southwestern New Mexico, and western Texas. This one was photographed along the road to Rustler Park in southeastern Arizona, USA. Photo taken with a 300mm f4.5 Nikkor ED lens on Ektachrome 400 film pushed to 800. (Date: May 1985)