A. Crown black.
S. carolinensis. Belly white; no black stripe through eye.
Bill, .70 long, .17 deep. Black spots on tertials sharply
defined. _Hab._ Eastern Province North America …
var. _carolinensis_.
Bill, .80 long, .14 deep. Black spots on tertials obsolete.
_Hab._ Middle and Western Province United States, south to
Cordova, Mexico … var. _aculeata_.
S. canadensis. Belly brownish-rusty. A black stripe through
eye. _Hab._ Whole of North America.
B. Crown not black.
S. pusilla. Crown light hair-brown; hind toe much longer than
the middle one. _Hab._ South Atlantic and Gulf States.
S. pygmæa. Crown greenish-plumbeous; hind toe about equal to
middle one. _Hab._ Western and Middle Province United States,
south to Xalapa.
Sitta carolinensis, var. carolinensis, LATH.