53o 



BIRDS OF THE REPUBLIC OF PANAMA PART 4 



53. Small, less than 125 mm. 



female Indigo Bunting, Passerina cyanella. p. 553 



Large, more than 150 mm. 



female Blue Grosbeak, Passerina caerulea caerulea. p. 552 



54. Wing coverts edged whitish 55 



Wing coverts edged olive-brown 56 



55. Lores and stripe over eye buff, contrasting with darker crown. 



female Ruddy-breasted Seedeater, Sporophila minuta centralis, p. 573 

 Lores and crown undifferentiated olive-brown. 



female White-collared Seedeater, Sporophila torqueola morelleti. p. 564 



56. Upper mandible strongly decurved ; height markedly less than of lower man- 



dible. 



female Slate-colored Seedeater, Sporophila schistacea schistacea. p. 563 

 Height of upper and lower mandible approximately equal ; upper 

 mandible gently decurved 57 



57. Base of gonys 7.0 mm or less. 



female Yellow-bellied Seedeater, Sporophila nigricollis nigricollis. p. 571 

 Base of gonys 7.5 mm or more. 



female Variable Seedeater, Sporophila americana. p. 566 



SALTATOR ATRICEPS LACERTOSUS Bangs: Black-headed Saltator, 

 Saltador Cabecinegro 



Figure 41 



Saltator lacertosus Bangs, 1900, Proc. New England Zool. Club, 2, p. 31. (Loma 

 del Leon, Panama.) 



Large; bill thick, hooked at tip; crown black; sides of head gray; 

 upper surface greenish yellow; throat white, black at edges; under- 

 surface gray. 



Description. — Length 218-240 mm. Adult (sexes alike), lores gray; 

 crown gray; superciliary white, fading to gray behind eye; sides of 

 head and of nape gray; rest of upper surface, including wings and tail, 

 greenish yellow; sides of chin and throat black; center of chin, throat, 

 and upper breast white; a few black spots at sides of upper breast; rest 

 of undersurface to lower flanks, gray; lower flanks drab; undertail 

 coverts tawny brown; underwing coverts white. 



A female taken at the Peluca Hydrographic Station, Province of 

 Panama, on February 21, 1961, had the iris wood brown; bill black; 

 tarsus and toes fuscous; claws dark neutral gray. 



Measurements. — Males (10 from Panama), wing 112.0-119.6 

 (115.7), tail 103.3-119.1 (111.0), culmen from base 25.5-27.8 (26.8), 

 tarsus 27.1-29.6 (28.1) mm. 



Females (10 from Panama), wing 103.0-115.8 (111.2), tail 99.5- 

 120.4 (109.0), culmen from base 24.5-27.9 (26.5), tarsus 24.5-29.0 

 (27.3) mm. 



