BIRDS OF NORTH AND MIDDLE AMERICA. 759 



This genus is very distinct from Cdi'dcJIlna^ from which it differs 

 in its rehitively much shorter and more rounded wino-, longer and 

 decidedly rounded tail, more slender bill, longer rictal bristles, and 

 very different style of coloration. 



KEY TO THE SPECIES f)F ERGATICCS. 



a. General color red. (Adults.) 

 h. Auficular region silvery white, in sharp and consincuous contrast with deep red 

 of rest of head. (States of Vera Crnz, Oaxaca, Puebla, Mexico, Michoacan, 



and Jalisco, Mexico. ) Ergaticus ruber, adult male and female (p. 759) 



hh. Auricular region satiny pink, concolor with rest of head. (Highlands of 

 Guatemala and Chiapas.) . .Ergaticus versicolor, adult male and female (p. 760) 

 cut. General color tawny brown. (Yomig. ) 



b. Auricular region light silvery gray Ergaticus ruber,^ young (p. 759) 



ERGATICUS RUBER (Swainbon). 

 RED WARBLER. 



Adult male. — General color rich red, darker and inclining to cl;iret 

 brown on back and scapulars, lighter (poppy I'cd or ])etwe(Mi poppy 

 red and carmine) on riunp and under parts of body; whole auricular 

 region silvery white or pale silvery gray; lesser wing-coverts concolor 

 with back; middle coverts dusky at l)ase but with most of exposed por- 

 tion poppy red; greater coverts dusky, brt)adly (nlged with didl poppy 

 red; remiges and rectrices dusky, with dull reddish edgings, broadest 

 and most distinct on tertials; bill horn ])rown, paler on luandible; legs 

 and feet light horn brownish; length (skins), 11.5-12(3 (120.5); wing, 

 57-63 (59.7); tail, 55-64 (58.3); exposed culmen, S-9 (S.5); tai-sus, 

 18..5-20 (10.3); middle toe, 10-11 (10.2).' 



Adult feriKile. — Similar to the adult male ])ut slightly duller in color; 

 length (skins), 115-117 (116); wing, 60-61 (60.5); tail, 56-57 (56.5); 

 exposed culmen, 8; tarsus, 20; middle toe, 9-10 (9.5).'' 



Innnaturc male {second' year). — Quite similar in coloration to the 

 adult female. 



ImtiKiture fem<de {xecoiid year). — Similar to the adult female and 

 immature male, but the red of a more orange hue, and color of occiput 

 hindneck, back, and scapulars much duller, inclining to burnt sienna. 



Young, ^first plumage. — General color cinnamon-])rown or russet, 

 darker above (inclining to mars brown on back and scapulars), paler, 

 more tawny -cinnamon, below, the abdomen inclining to cinnamon- buff'; 

 auricular region pale silvery gray, in sharp and strong contrast with 

 brown of rest of head; wings and tail dusky, the middle wing-coverts 

 broadl}^ tipped with cinnamon, the greater coverts broadly edged with 

 the same, the remiges and rectrices edged with dull brownish red or 

 reddish brown. 



Highlands of Mexico, in States of Vera Cruz (Jalapa; Mirador; Las 



^ The young of E. rersicolor not seen. '' Foiu' specimens. ^ Two sjjecimens. 



