BIRDS OF NOKTH AND MIDDLE AMEKIOA. 115 



to or longer than first but shorter than second, the seventh, sixth, and 

 fifth longest; three outermost primaries rather narrow, pointed, their 

 inner webs slightly emarginate. Tail much longer than wing, even 

 or slightly emarginate [P. ci.nereus) or graduated {P. ccmdaius). 

 Tarsus shorter than middle toe with claw, the acrotarsium and lower 

 fourth or more of planta tarsi distinctly scutellate; outer toe slightly 

 but decidedly longer than the inner, its claw reaching nearly to base 

 of middle claw; basal phalanx of middle toe united to that of outer 

 toe by most of its length, to that of inner toe by about half its length. 

 Plumage soft, blended; pileum with a bushy crest of broad, blended 

 feathers; tibial JEeathers well developed, forming a conspicuous tuft 

 quite covering the tibio-tarsal joint. 



Coloration. — Mostly plain gray or brown, with under tail-coverts 

 yellow, the flanks (sometimes neck and crest also) olive-green; remiges 

 and rectrices black, the latter with a large white patch on inner web. 



Nidification. — (Unknown . ) " 



Romge. — Highlands of Mexico, Guatemala, and Costa Rica. (Two 

 species.) 



KEY TO THE SPECIES OF PTILOGONYS. 



a. Tail even or emarginate; crest wholly gray; orbital ring white. (Ptilogonys 

 cinereus.) 

 b. Back, breast, etc., bluish gray; flanks yellowish olive-green or golden olive. 

 (Adult males. ) 

 c. Gray of back, breast, etc., lighter; flanks bright golden olive or deep wax 

 yellow. (Southern portion of Mexican pleateau. ) 



Ptilogonys cinereus cinereus, adult male (p. 115) 

 cc. Gray of back, breast, etc., darker; flanks (less extensively) olive-green. 

 (Highlands of Guatemala.) 



Ptilogonys cinereus molybdophanfes, adult male (p. 117) 

 66. Back, breast, etc., grayish brown or brownish gray; flanks light wood brown 

 or brownish buff. (Adult females. ) 



c. Paler - - . Ptilogonys cinereus cinereus, adult female (p. 116) 



cc. Darker Ptilogonys cinereus molybdophaues, adult female (p. 118) 



aa. Tail graduated; occipital portion of crest yellowish olive-green; orbital ring 

 yellow. 

 6. Back, breast, etc., bluish gray; tail excessively graduated. (Highlands of Costa 



Eica and Ohiriqui: ) Ptilogonys caudatus, adult male (p. 118) 



66. Back, breast, etc., olive-greenish; tail moderately graduated. 



Ptilogonys caudatus, adult female (p. 119) 



PTILOGONYS CINEREUS CINEREUS Swainson, 

 MEXICAN PTILOGONYS. 



Adult male. — Frontal antite, supraloral region, anterior portion of 

 malar region, and chin dull white or brownish white; a dusky loral 

 spot, this extending narrowly beneath lower eyelid; a narrow white 



« The eggs are said to resemble those of Anthus praterms. (See Sclater, Proc. Zool. 

 Soc. Lond., 1859, 376.) 



