ACROMYODI. 423 



h*. Bill moderately long and slender; tips of rectrices square or 



rounded Sturnidse (p. 709) 



f 2 . First primary longer than primary-coverts, its tip rounded. 



g l . Nostrils not concealed by plumes nor bristles; rictal bristles not 



conspicuously developed. 



h 1 . Wing rounded, the primaries not greatly exceeding the second- 

 aries in length Timeliidae (p. 517) 



h*. Wing pointed, the primaries considerably longer than the sec- 

 ondaries Oriolidae (p. 693) 



g z . Nostrils concealed by antrorse feathers, or by both feathers and 



long bristles. 



h 1 . Smaller; wing, less than 200 mm.; frontal feathers shorter, 

 never extending far in front of the nostrils; nasal bristles 

 often extending beyond the frontal feathera 

 i 1 . Under tail-coverts shorter, not extending beyond the toes in 



skins. 



j l . Hind toe longer than longest lateral toe, its claw large; 

 outer toe much longer than inner toe; bill slender; cul- 



men nearly straight Sittidae (p. 609) 



f. Hind toe equal to, or shorter than, longest lateral toe, its 



claw not conspicuously larger than the claws of anterior 



toes; outer toe slightly longer than inner toe; culmen 



more or less curved, usually with a notch near the tip 



of mandible; or else the bill short, stout, and conoid. 



k 1 . Bill much flattened, wide at the base, and with long 



rictal and nasal bristles; or else bill slender; legs and 



feet usually weak; wing, not over 95 mm., usually 



much less Muscicapidae (p. 430) 



A; 2 . Bill strong and compressed, or else short and conoid with 



no notch near the tip; legs and feet stout. 

 Z 1 . Tail short and square, reaching little if at all beyond 

 the toes; bill short, stout, and conoid; wing, 80 



mm. or less Paridae ( p. 604 ) 



P. Tail moderately to very long; bill large and com- 

 pressed, culmen strongly curved; wing, 85 mm. or 

 more. 



m 1 . Rectrices long, narrow, and graduated; plumage 

 ; never glossy nor entirely black; upper mandible 



with a strong notch near the tip. 



Laniidae (p. 591) 



w 2 . Rectrices long and broad, the outermost curved 

 outward; tail slightly to deeply forked; feathers 

 on sides of neck more or less lengthened and 

 pointed; plumage glossy black (abdomen white 



in one species) Dicruridse (p. 702) 



t 2 . Under tail-coverts longer, extending beyond the toes in skins; 

 bill stout, as wide as deep at nostril; culmen strongly 

 arched; rictal and nasal bristles inconspicuous. 



Campophagidae (p. 478) 



Ji 2 . Larger; wing, more than 200 mm.; plumes covering the nostrils 

 numerous and long, extending well beyond the nostrils; no 

 nasal bristles; plumage entirely black Corvidae (p. 721) 



