414 REVIEW OF AMERICAN BIRDS. [PART I. 
First quill contained not quite three and a half times in longest; the 2d 
rather shorter than 10th; the 3d a little shorter than 7th; the Ist, 2d, and 3d 
moderately attenuated at end; the Ist falcate, acute. 
Upper surface of body and wings, with jugulum and breast, bluish-ash. 
Head and neck all round, with nape belly and flanks, yellowish-green, paler 
\ Ptilogonys caudatus, CABANIS. (Costa Rica.) 
on throat; the top of head, from bill, pale ashy ; chin and forehead anterior to 
eyes lighter, and tinged with yellowish; the crissum and narrow ring round 
eye egg-yellow. Tibiz and concealed tuft on thighs whitish. Quill- and tail- 
feathers glossy greenish-black ; the former edged internally with whitish, the 
four or five outer tail feathers with a patch of white in the middle third of 
inner webs, diminishing in size towards the interior one; the outermost with 
the outlines following nearly the line of the fibres of the feather, or lozenge- 
shaped, not rectangular. On the fourth feather the spot does not reach the 
inner edge of the feather, and is still more reduced, sometimes wanting in 
the fifth. Outer edges of quills very narrowly like back. Bill and feet 
black. Iris “ bluish-yellow” (Carmiol). 
(No. 35,247, 2.) Total length, 10.60; wing, 3.80; tail, 5.50; middle feather, 
1.90 longer than lateral; difference of 10th and longest quills, .80; exposed 
portion of 1st primary, .80, of 2d, 1.70, of longest (5th and 6th) (moastived 
from exposed base of Ist primary), 2.80; length of bill from forehead, .60, 
from nostril, .29, along gape, .75 ; tarsus, .70; middle toe and claw, .70, claw 
alone, .23; hind toe and claw, .50; claw alone, .25. 
The adults of the two sexes do not appear to differ in color. In 
younger birds (No. 35,245), however, the bluish-ash is replaced by 
the yellowish-green, of which color is the entire body and head. In 
still younger birds there is a strong tinge of brown. In No. 35,245, 
too, the crest, instead of being broad and full, the lateral feathers as 
long as central, is pointed, owing to the central feathers being much 
longer, and more distinct in outline, or rather the lateral more abbre- 
viated, in this respect much like the crest of Phenopepla nitens. 
