CHAPMAN'S SWIFT 



Sexes alike. Glossy blue black above with 

 the rump pale gray; throat grayish white, passing 

 to mouse gray on chest and to blackish slate on 

 remaining under parts, the under tail coverts 

 slate black. 



See note on next species. 



2. Chaetura chapman! Hellmayr 

 Chapman's Swift 



Sexes alike. Length, about 120 mm. (4.70 



in.); tail, about 50 mm. (2.00 in.). Resembling 

 C. cinereiventris fumosa but larger, the rump and 

 upper tail coverts smoky gray in less noticeable 

 contrast to the color of remaining upper parts ; the 

 under parts deep sooty gray, the throat and chest 

 paler. 



Swifts of about this size and appearance are 

 common in the Canal Zone and will often be seen 

 flying over the squares and about the suburbs of 

 Panama City. Whether they are all of this 

 species seems somewhat doubtful; the swifts of 

 this region require further investigation and 

 other species beside the two here recorded, will 

 doubtless be proved to occur here. 



38. Family TROCHILID^E 



The Hummingbirds 



The hummingbirds are an immense family 

 of birds so distinct in habits and appearance 

 177 



