Carolina Titmouse from Birds of America (1827) by John James Audubon (1785 - 1851), etched by Robert Havell (1793 - 1878).… Carolina Titmouse from Birds of America (1827) by John James Audubon (1785 - 1851), etched by Robert Havell (1793 - 1878).… Free Image from public domain license
Free
Black-capped chickadee (Parus atricapillus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929… Black-capped chickadee (Parus atricapillus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929… Free Image from public domain license
Free
Black-capped chickadee (Parus atricapillus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929… Black-capped chickadee (Parus atricapillus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929…