AVES FALCON I D>E. 



\\ing 8.40; tail 5.60 inches. P. U. O. C 7895 (sec below). 

 12.40; wing 8.20; tail 5.75 inches. 

 Color. Adult male cited above. 



FIG. 341. 



669 

 Length 



Cerckmtii ci*namomi*a. Adult male, P. U. O. C. 7954. About one-third natural size. 



Head: Forehead and region in front of eye and an indistinct eye-stripe 

 white; crown slate-blue, each feather striped by the black shaft-stripe; 1 a 

 spot of deep cliestnut on tlte after part of tlte crown; a streak running 

 behind the ear-coverts and nearly joining a black well-defined nuchal band, 

 black ; a well-defined black moustachial streak, black ; ear-coverts chiefly 

 white, as are the sides of the face. 



Neck : Nuchal band defining crown black ; rest of upper neck bright 

 cinnamon; chin and upper throat white, immaculate; lower throat shaded 

 with cinnamon. 



Back : Bright cinnamon, decorated with blackish bars, varying much in 

 different birds, in the interscapular region and on the scapulars; lower 

 back and upper tail-coverts immaculate bright cinnamon. 1 



1 The standard descriptions of C. cimtamomuKi give the crown as having no chestnut marking 

 or spot ; the aeries from Patagonia shows at least some trace of cinnamon or chestnut in the crown 

 of each bird. 



* These birds of both sexes, all taken in the southern port of their range, average larger than 

 birds from farther north, so that the difference is noticeable. 



