[Length 4.75 in. Wingspan 7.5 in.]

Common in woodlands and at feeders throughout much of Canada and the US, the almost identical Black-capped Chickadee (Poecile atricapillus) of the north and Carolina Chickadee (Poecile carolinensis) of the south formally announce themselves with a rapid CHICK-A-DEE-DEE-DEE call. They are inquisitive, and will often approach within several feet to investigate. This one was photographed near a feeder in central New Jersey. Photo taken with a Nikkor 180mm EDAF f2.8 lens on Kodachrome 200 film. (Date: December 1993)

[Length 4.75 in. Wingspan 7.5 in.]

This Carolina Chickadee was photographed near a feeder in central New Jersey. Photo taken with a Nikkor 180mm EDAF f2.8 lens on Kodachrome 200 film. (Date: December 1993)

[Length 4.75 in. Wingspan 7.5 in.]

This Carolina Chickadee was photographed near a feeder in central New Jersey. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: April 1992)

[Length 4.75 in. Wingspan 7.5 in.]

This Carolina Chickadee was photographed near a feeder in central New Jersey. Photo taken with a Nikkor 180mm EDAF f2.8 lens on Kodachrome 200 film. (Date: February 1994)

[Length 4.75 in. Wingspan 7.5 in.]

This Chestnut-backed Chickadee was photographed along the California coast near Morro Bay, California. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: November 1997)

[Length 5 in. Wingspan 8.25 in.]

This Mexican Chickadee was photographed on Rustler Peak in southeastern Arizona. Photo taken with a Nikkor 300mm ED f4.5 lens on Ektachrome 400 film pushed to 800. This photo is on file with the Academy of Natural Sciences' Visual Resources for Ornithology (VIREO B22/1/009). (Date: May 1985)

[Length 5.25 in. Wingspan 8.5 in.]

This "Pacific" Mountain Chickadee was photographed in the mountains near Mt. Pinos, California. Photo taken with a Nikkor 300mm ED f4.5 lens on Ektachrome 200 film pushed to 800. (Date: August 1983)

[Length 5.25 in. Wingspan 8.5 in.]

This Mountain Chickadee was photographed at the mountaintop restaurant, Sandia Crest, NM. Photo taken with a Nikkor 300mm EDAF-S VR f2.8 lens (EFL=450mm) on a Nikon D200 camera. (Date: March 3, 2008)