COLLURIO 



439 



A. Black cheek-stripes involving eyelid only on npper border 



of eye, and not meeting across the forehead. A crescentio • 



patch of white in the black, beiow the eye; npper edge 

 of black stripe behind the eye bordered by hoary wuit- 

 ish. Breast and belly always with distinct, transverse 

 waved lines of dusky. Bill, when mature, entirely black. 

 Length about 10 inches. 

 Above I'^jht ash. Upper tail coverts and forehead much ■:.: 



r paler than the back, the former without waved 



lines. Axillars whitish. ' • ,•' ^ > • ' ■ • • 



Inner webs of secondaries paler towards edges, 

 '* but not of well-defined white. Concealed 



'■ bases of tail feathers, except sixth, white. 



Tarsus shorter than the gape of mouth . borealis. 

 8. Black cheek-stripes not involving upper border of eye or 



upper eyelid, which is whitish, and not meeting across ' 



the forehead, its upper edge behind the eye with scarcely 

 a lighter border. No patch of white on lower eyelid. 

 Under parts unvaried white ; in female obscurely waved. 

 Base of under mandible whitish. Length about 9 inches. 

 .. Above light ash. Upper tail coverts and forehead de- 

 cidedly paler than the back. Axillars whitish. 

 ,1^ Inner webs of all secondaries (except innermost) 

 t white to shaft, except for less than terminal 

 half, which is black along the shaft. Con- 

 cealed base of tail white, except on sixth 

 feather. Tarsus equal to the gape . . excubitor 

 C. Black cheek-stripes involving upper eyelid, as in A, but 

 without patch of white below the eye ; meeting in a nar- 

 row, sometimes inconspicuous line across the forehead, 

 its upper edge behind the eye not bordered by lighter. 

 Beneath plain white, or very obscurely waved in ludorici- 

 anus (the female?). Bill, when mature, entirely black. 

 Length about 8.50 inches. 

 Above dark plumbeous-ash. Upper tail coverts and 

 forehead scarcely paler than the back. Sides and 

 L; ; breast tinged with bluish-gray. ■ ■ ■ • : ' , 

 ^,. Black of loral space rather hoary along upper 

 border. Frontal dark line inappreciable or 

 wanting. Inner webs of secondaries paler 

 only along the marginal half, and not ab- 

 , . ruptly white. Axillars plumbeous. Tail 

 :, feathers, except the innermost, with a con- 

 -=»: cealed well-defined white patch at base, 

 largest on the more exterior one. Bill from 

 - -. nostril, .50. Under parts often witli very 

 obscure faint waved lines (in the female?). 

 White patch on wing reaching about to 

 mitldleuf 1st piimary. Tarsus equal to the 

 gape ludov 



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