574 BIRDS OF THE REPUBLIC OF PANAMA PART 3 



daries and inner primaries edged narrowly with white ; tail grayish 

 brown, tipped narrowly and indistinctly with dull white : an indis- 

 tinct blackish spot in front of eye ; lores dull white, this marking 

 extending back over eye as a superciliary streak ; lower eyelid with a 

 white line ; side of head back of eye dusky, mixed basally with grayish 

 white ; chin and upper throat rather dull white, shading on f oreneck 

 and upper breast to dull greenish gray ; upper breast lined indefinitely 

 with dull yellow ; lower breast, abdomen, and under tail coverts pale 

 yellow ; edge of wing dusky ; axillars and under wing coverts pale 

 yellow. 



Juvenile, base colors of dorsal surface as in adult but with crown 

 and back feathers tipped narrowly with white. Middle and greater 

 coverts tipped prominently with white, forming two definite wing 

 bars ; tail tipped with white. 



Measurements. — Males (1 from Darien, 8 from northern Co- 

 lumbia), wing 49.3-53.6 (51.7), tail 43.1^7.4 (45.2, average of 8), 

 culmen from base 8.7-9.7 (9.2). tarsus 13.3-14.5 (13.9) mm. 



Females (3 from Colombia), wing 47.0-50.5 (48.7), tail 41.9-45.8 

 (43.2), culmen from base 8.2-9.0 (8.6), tarsus 13.4-13.7 (13.5) mm. 



Recorded in Darien from one male, taken at Cana on Cerro Pirre. 



The specimen was collected by E. A. Goldman June 1, 1912, at 

 550 meters elevation. His notes make no reference to it except for 

 its entry in his specimen catalog. When the collection was first studied 

 by E. W. Nelson, he identified it correctly as to species, but then the 

 bird, through some oversight was laid aside, apart from the rest of 

 the collection. When finally it came to attention it was noticed that it 

 differed slightly in paler, duller pattern of color from other specimens 

 available. Because of this I named it as a distinct race, as indicated 

 above. As other specimens became available from Choco and other 

 areas in northern Colombia, it was found that these were individual 

 differences, and the bird of Cerro Pirre proved to be an example 

 of the subspecies cristatus of northern Colombia. As a whole, the 

 species griseiceps has a wide distribution in Colombia, Ecuador, Peru, 

 northern Brazil, eastern Venezuela, and Guyana. As yet little 

 seems to be known of it, aside from the few specimens in museum 

 collections. 



The presence of prominent wing bars in the juvenile stage (absent 

 or slightly marked in the adult ) is interesting, as this and the white 

 tipping on the upper surface are suggestive of what is seen in the 

 juvenile stage in Suhlegatus. 



The name cristatus was presented at a meeting of the German 



