506 rODICIPEDID^. 



c. Inner primaries ^vith at least the basal 



part of the outer web ash-brown ; the 

 inner web and tip white; secondaries 

 white, waslied with ash-brown on the 

 outer web dommicus, p. 520. 



d. Inner primaries and outer secondaries pure 



white, with generally a very small brown 

 or ash-colonred spot near the tip of the 

 outer web poliucephalus, p. b'2'2. 



e. Inner primaries and outer secondaries 



white, rather widely tipped on both 

 webs with dark ash-brown, extending 

 further towards the base on the outer 

 web * nifipectus, p. 523. 



B. Sides of head and ear-coverts white with 



dark brown tips, producing a streaked 



appearance americnnus, p. 524. 



II. Size somewhat larger : culmen from feathers 



on forehead to tip 0-6-1-3; wing 4-6-5-9 t ; 

 outer toe and claw 2'l-2'6. 



C. Sides of head and ear-coverts white, with 



blackish tips, producing a striated appear- 

 ance . *rol/andi, p. 52(5. 



D. Sides of head and ear-coverts golden, buff' 



or dusky, never streaked. 



f. Inner primary quills pure white ni<jricullis, p. 532. 



(J. Inner primary quills ash, sometimes nar- 

 rowly tipped with white. 



a' . Forehead, crown, occiput, and nape 

 uniform brownish black. 

 a" . Terminal half of the culmen nearly 

 straight and slightly tilted upward ; 



wing 49-5'3o inches californicus, p. 535. 



b" . Oulmen slightly curved downward 

 toward the tip ; wing 5'65-5-9 



inches auritus, p. 527. 



b'. Forehead and crown mouse-brown or 

 ash, contrasting strongly with the 

 sooty-black occiput and nape. 

 c". Wing 5'2-5'5 inches ; culmen 06- 

 0'8 ; outer toe and claw 2-2. 

 a^. Forehead and crown mouse-brown, caliparetis, p. 536. 



P. Forehead and crown ash jiminensis, p. 538. 



d". Wing about 4'6 inches ; culmen 1 '3- 



I'5; outer toe and claw 2"45 taczanowskii, p. 538. 



III. Size largest : culmen from feathers on fore- 

 head to tip 1-4-2-4 inches; wing 4-5-8'3 J ; 

 outer toe and claw 2'8-3'2. 



E. Humeral feathers dark brown. 



h. Wing 4"5-4"6 inches : least wing-coverts 



brown, like the rest of the wing micropterus, p. 538. 



* P. nifipectus and P. roUandi have not been examined in non-breeding 

 phimage. 



t Moi'e than 5 inches long except in P. taczanowskii. 

 \ More than 6 inches long except in P. micropteria-. 



