[Length 4.5 in. Wingspan 6 in.]

This Blue-gray Gnatcatcher was photographed at WBC Edinburg Scenic Wetlands, Edinburg, Texas, USA. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC20E II 2.0x Teleconverter (EFL=900mm) on a Nikon D300 camera. (Date: February 9, 2010)

[Length 4.5 in. Wingspan 6 in.]

This male Blue-gray Gnatcatcher was photographed at Jake's Landing in southern New Jersey, USA. Photo taken with a Nikkor 500mm f8.0 mirror lens on Ektachrome 800 film. (Date: May 1986)

[Length 4.5 in. Wingspan 6 in.]

This Blue-gray Gnatcatcher was photographed at Brazos Bend State Park, Needville, 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: January 15, 2009)

[Length 4.5 in. Wingspan 6 in.]

This Blue-gray Gnatcatcher was photographed at the Hazel Bazemore Park Hawk Watch platform, Corpus Christi, 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: August 22, 2009)

[Length 4.5 in. Wingspan 6 in.]

This Blue-gray Gnatcatcher was photographed at Lake Balmorhea, Balmorhea, Texas, USA. Photo taken with a AF-S VR Zoom-Nikkor 70-300mm f/4.5-5.6G IF-ED lens (EFL=330mm) on a Nikon D200 camera. (Date: December 18, 2009)

[Length 4.5 in. Wingspan 5.5 in.]

This female California Gnatcatcher was photographed at the coastal foothills, Malibu, 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: July 6, 2013)

[Length 4.5 in. Wingspan 5.5 in.]

This female California Gnatcatcher was photographed at the coastal foothills, Malibu, 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: July 6, 2013)

[Length 4.5 in. Wingspan 5.5 in.]

This male California Gnatcatcher was photographed at the coastal foothills, Malibu, 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: July 6, 2013)

[Length 16 in. Wingspan 30 in.]

These "Asian" Bar-tailed Godwits were photographed on Attu Island, Alaska, USA. Photo taken with a Nikkor 300mm ED f4.5 lens on Ektachrome 200 film. (Date: May 1984)