344 



BIRDS OF BRITISH GUIANA. 



Genus ATTICORA Boie. 



4iticora Boie, Isis, 1844, p. 172. Type A.fasciata (Gmel.). 



Pig. 132.— To illustrate the form of the tail. 



In this genus the bill is flat at the base, where the width is about 

 equal to the length o£ the exposed culinen ; the nostrils are rounded 

 and exposed. The wing is pointed, the first primary is longest, 

 and exceeds the length of the tail by about one-fourth. The tail 

 is forked, the middle feathers about half the length of the outer 

 ones. The feet are weak, the middle toe and claw exceed the 

 length of the tarsus by about one-sixth. Coloration : male and 

 female similar. 



Key to the Species. 



A. Upper surface glossy blue-black. 



a'. Throat and abdomen blue-black A.fasciata, p. 345. 



V . Throat and abdomen white 



if". Fore-neck banded with blue-black, 

 dividing the white of the throat 



from that of the abdomen A. melanoleuca, p. 346. 



h". Throat, fore-neck, and abdomen 



' uniform white A. cyanoleuca, p. 347. 



B. Upper surface earth-brown ; throat, 



breast, and nuchal collar pale rufous 



like the sides of the face A. fucata roraimcB, p. 348. 



