Anthony Allan Floyd has written:

'Nest-site resource differentiation by three sympatric chickadees' -- subject(s): Nests, Black-capped chickadee, Mountain Chickadee, Competition (Biology), Chestnut-backed Chickadee

The average life-span of a Black-capped Chickadee is probably about 2.5 years. The longest lived on record was 12 years 5 months. In captivity the average is 7 years.

Another reference reported the average life expectancy for a black capped chickadee as 1.5 years for a female and 1.8 years for a male. Mortality from predation is especially high for very young individuals but weather and accidents seem to be the primary causes of death of all age groups.

For the Carolina Chickadee the oldest known individual was 10 years 11 months.

Please note: There are seven species of chickadees in North America: the Black-capped Chickadee, Boreal Chickadee, Carolina Chickadee, Chestnut-backed Chickadee, Mexican Chickadee, Mountain Chckadee and the Siberian Tit.

A chickadee is not a mammal. It is a bird.

The scientific name for chickadee is Parus atricapillus

The Chickadee Song was created in 1999.