AVES rCHARADRIID^E 325 



Color adult male in breeding plumage. Head. Crown greyish buffy , 

 broadly streaked with blackish or very dark brown. Base of forehead and 

 an eyebrow streak as well as the cheeks white ; a dusky loral area ; auric- 

 ulars greyish with brownish buff shading. 



Neck: Above buffy grey inclining to sandy, minutely streaked with 

 brownish in contrast to the crown area. This color extending over the 

 sides of the neck to the under parts and to the chest continuously. Chin 

 white. 



Back : Upper back and scapulars light brownish grey, inclining to 

 sandy and irregularly marked with brownish black and greyish buff ; the 

 lower back and rump plain dusky, as are the median iipper tail coverts, the 

 lateral upper tail coverts being white. 



FIG. 167. 



Heteropygia bairdi. Showing the pattern of the tail and upper tail coverts. P. U. O. C. 7797. 

 Two thirds natural size. 



Tail : Uniform dusky, the two central rectrices being distinctly darker 

 contrasted with the others. All the rectrices with white shafts. 



Wings: Coverts brown with sandy buff edgings, the, greater series 

 rather darker and in addition edged with whitish. Bastard wing and pri- 

 mary coverts dusky. Quills light brown ; the primaries darker on their 

 exposed surfaces, and lighter on their inner webs. All the quills with their 

 shafts ivory white shading to darker toward the tips. The innermost 

 secondaries approaching the general character of the back in color and 

 marking. 



Lower parts : Chin and upper throat white. An undefined pectoral 

 area continuous with the darker portions of the neck, greyish sandy buff, 

 streaked and marked with dull greyish brown. Back of the pectoral area 

 the lower parts are white with little or no streaking on the sides or flanks. 



Bill, blackish. 



