[Length 4.5 in. Wingspan 8 in.]

This female "Black-backed" Lesser Goldfinch was photographed near the pond and sprinkler at the Falfurrias rest stop on Route 281 in southern Texas. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodak Elitechrome 200 film. (Date: April 2001)

[Length 4.5 in. Wingspan 8 in.]

This female "green-backed" Lesser Goldfinch was photographed at Southeastern Arizona Bird Observatory, Bisbee, AZ. Photo taken with a Nikkor 300mm EDAF-S VR f2.8 lens + Nikkor TC20E II 2.0x Teleconverter (EFL=900mm) on a Nikon D200 camera. (Date: August 8, 2007)

[Length 4.5 in. Wingspan 8 in.]

This male "green-backed" Lesser Goldfinch was photographed at the Santa Rita Lodge feeders, Madera Canyon, AZ. Photo taken with a Nikkor 300mm EDAF-S VR f2.8 lens (EFL=450mm) on a Nikon D200 camera. (Date: August 10, 2007)

[Length 4.5 in. Wingspan 8 in.]

This male "Green-backed" Lesser Goldfinch was photographed in the foothills near Arroyo Grande, California. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: September 1997)

[Length 4.5 in. Wingspan 8 in.]

This female "Green-backed" Lesser Goldfinch was photographed in the foothills near Arroyo Grande, California. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: September 1997)

[Length 6 in. Wingspan xx in.]

This female European Greenfinch was photographed at Titchwell RSPB Reserve, Norfolk, England. Photo taken with a Nikkor EDAF 300 f4.0 lens on Kodachrome 200 film. (Date: May 2002)

[Length 6 in. Wingspan xx in.]

This male European Greenfinch was photographed at Titchwell RSPB Reserve, Norfolk, England. Photo taken with a Nikkor EDAF 300 f4.0 lens on Kodachrome 200 film. (Date: May 2002)

[Length 5.25 in. Wingspan 9 in.]

This Common Redpoll was photographed on Attu Island in the Aleutian Islands, Alaska. Photo taken with a Nikkor 300mm ED f4.5 lens on Ektachrome 200 film. (Date: May 1984)