FEMALE CiERULEAN WARBLER. 115 
The female azure warbler is four and three-quarter 
inches long*, and eight and a quarter in extent.* Bill, 
blackish above, pale bluish beneath ; feet, light blue ; 
irides, very dark brown ; head and neck above, and 
back, rick silky green, brighter on the head, and passing 
gradually into dull bluish on the rump ; line from the 
bill over the eye, whitish, above which is the indk 
cation of a blue-black line widening behind ; a dusky 
streak passes through the eye ; cheeks, dusky greenish ; 
beneath, entirely whitish, strongly tinged with yellow 
on the chin ; sides of the neck, breast, flanks, and vent, 
streaked with dark bluish; the base of the whole 
plumage is bluish white ; inferior tail-coverts, pure 
white ; wings and tail, very similar to those of the male, 
though much less brilliant ; smaller wing-coverts, bluish, 
tipped with green ; middling and large wing-coverts, 
blackish, widely tipped with white, constituting two 
very apparent bands across the wings, the white 
slightly tinged with yellowish at tip; spurious wing, 
blackish ; quill-feathers, blackish, edged externally with 
green, internally and at tip with whitish, the three 
nearest the body more widely so ; the inferior wing- 
coverts, white ; tail, hardly rounded, feathers, dusky 
slate, slightly tinged with bluish externally, and lined 
with pure white internally, each with a white spot 
towards the tip on the inner web. This spot is larger 
on the outer feathers, and decreases gradually until it 
becomes inconspicuous on the two middle ones. 
The description of the male need not here be repeated, 
having been already given with sufficient accuracy by 
Wilson, to whose work the reader is referred. On a 
comparison of the description, he will find that the chief 
difference between the sexes consists in the female 
being green instead of blue, in her wanting the black 
streaks, and in being tinged with yellow beneath. 
We have to regret our inability to add much to 
* The dimensions given by Wilson of the male must be rather 
below the standard, as they are inferior to those of the female, 
whereas all the specimens we examined were larger, as usual. 
