[Length 6.25 in. Wingspan 10 in.]

This Yellow-green Vireo was photographed at Blucher Park, Corpus Christi, Texas. Photo taken with a Canon EOS 10D camera (lens unknown). (Date: June 18, 2014)

[Length 6.25 in. Wingspan 10 in.]

This Yellow-green Vireo was photographed at Sabal Palms Sanctuary, Brownsville, Texas, USA. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC17E II 1.7x Teleconverter (EFL=750mm) on a Nikon D7000 camera. (Date: June 14, 2011)

[Length 6.25 in. Wingspan 10 in.]

This Yellow-green Vireo was photographed at Sabal Palms Sanctuary, Brownsville, Texas, USA. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC17E II 1.7x Teleconverter (EFL=750mm) on a Nikon D7000 camera. (Date: June 14, 2011)

[Length 6.25 in. Wingspan 10 in.]

This Yellow-green Vireo was photographed at Blucher Park, Corpus Christi, Texas. Photo taken with a Canon EOS 10D camera (lens unknown). (Date: June 18, 2014)

[Length 5.5 in. Wingspan 9.5 in.]

This Yellow-throated Vireo was photographed at TOS Sabine Woods Sanctuary, 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 D200 camera. (Date: April 20, 2010)

[Length 5.5 in. Wingspan 9.5 in.]

Yellow-throated Vireos breed throughout the eastern and central US, and just barely make it into southern Canada. They winter in southern Florida and along the Gulf coast from Louisiana to southern Texas. This one was photographed at the Great Swamp NWR in northern New Jersey, USA. Photo taken with a 300mm f4.5 Nikkor ED lens on Ektachrome 400 film pushed to 800. (Date: May 1980)

[Length 25 in. Wingspan 59 in.]

The Black Vulture is a common bird throughout the southern US, ranging as far west as Arizona. It is easily recognized and distinguished from its cousin, the Turkey Vulture, by its all-black head (although young Turkey Vultures also have dark heads). In flight, Black Vultures flap their wings much more than Turkey Vultures, and the white patches in the primaries and very short tail also quickly identify them. This one was photographed near a road kill along a road in southern Florida, USA. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 64 film. (Date: November 1979)

[Length 25 in. Wingspan 59 in.]

This Black Vulture was photographed at the ProAves El Dorado Reserve, Sierra Nevada de Santa Marta, Department Magdalena, Colombia. Photo taken with a AF-S VR Zoom-Nikkor 70-300mm f/4.5-5.6G IF-ED lens (EFL=450mm) on a Nikon D200 camera. (Date: June 10, 2009)

[Length 25 in. Wingspan 59 in.]

This Black Vulture was photographed at Achiote Road, Colon, Panama. Photo taken with a AF-S VR Zoom-Nikkor 70-300mm f/4.5-5.6G IF-ED lens (EFL=450mm) on a Nikon D7000 camera. (Date: August 5, 2011)