[Length 5.5 in. Wingspan 8.5 in.]

This Boreal Chickadee was photographed near Soldotna, Alaska, USA. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 200 film. (Date: July 1994)

[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, USA. 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, USA. 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, USA. 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, USA. 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 Carolina Chickadee was photographed at Friedrich Wilderness Park, San Antonio, 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 D7000 camera. (Date: June 22, 2011)

[Length 4.75 in. Wingspan 7.5 in.]

This Carolina Chickadee was photographed at Friedrich Wilderness Park, San Antonio, 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 D7000 camera. (Date: June 22, 2011)

[Length 4.75 in. Wingspan 7.5 in.]

This Carolina Chickadee was photographed at Russ Ptman Park, Bellaire, 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: January 16, 2013)