BIRDS OF NORTH AND MIDDLE AMERICA 229 



wing coverts olive-brown indistinctly crossed by extremely faint, 

 narrow bars of slightly darker; remiges fairly pale but dull munnny 

 brown with only a slight olivaceous wash to practically fuscous; 

 rectrices fuscous to dark fuscous tipped with white ; lores white, the 

 part immediately adjacent to the anterior margin of the eye like the 

 narrow frontal area; subocular space, chin, upper throat, and lower 

 neck white; a narrow black stripe from the angle of the mouth con- 

 necting with a narrow anteroventral extension of the black postocular 

 band occurs in some specimens and is totally absent in others, regard- 

 less of sex, season, or locality; cheeks and auriculars varying from 

 Avhite lightly and sparsely washed or flecked with ochraceous-buff 

 to pinkish cinnamon to practically solid pinkish cinnamon ; extreme 

 lower end of throat with an indistinct ring of dusky where the two 

 lateral black stripes tend to merge, the feathers there being blackish 

 basally and white terminally; upper breast white suffused with very 

 pale Saccardo's umber; lower breast and abdomen white; sides and 

 flanks pale brownish olive, the under tail coverts dull, and somewhat 

 grayish, fuscous, the feathers edged with hair brown to pale brownish 

 olive, the tips slightly whitish ; under wing coverts dull ashy fuscous 

 tipped with lighter; iris dark brown; upper mandible (maxilla) red 

 to reddish sepia, "with a slight black mark on the culmen and behind 

 the nostrils," ^ the lower mandible yellowish white, more yellowish 

 basally; tarsi yellow to yellowish white; toes yellow, the middle one 

 with three black cross bars, the inner one with two, the outer one 

 with four, and the hind toe with one. 



Juvenal ^. — Like the adult, but with the rump and upper tail coverts 

 slightly more tawny and with the forehead more extensively brown- 

 ish, this color extending posteriorly over the anterior ends of the 

 white superciliaries. 



Natal down. — Not known. 



Adult male.—W\\ig 134-145 (138.8) ; tail 82-93 (87) ; exposed cul- 

 men 29.5-31 (30.4) ; tarsus 21-24 (22.8) ; middle toe without claw 

 29-32.5 (31.2 mm. ).^ 



Adult female.— Wmg 132.5-146 (137.9) ; tail 79-88 (82.8) : exposed 

 culmen 25-32.5 (29.3) ; tarsus 21-27 (24) ; middle toe without claw 

 27-32 (29.8mm.).« 



Range. — Resident, and apparently nowhere very abundant, along 

 stagnant streams and rivers bordered by forest, from southern Vera- 



' Cat. Birds Brit. Mus., xxiii, 1894, 234. 



'It is not known whether this is a true plumage phase, but it seems to be 

 one. Tliere is, however, the possibility that it is purely a matter of individual 

 variation. 



'' Four specimens from Costa Rica and Nicaragua. 



* Eleven specimens from British Honduras, Nicaragua, Costa Rica, Panama, 

 and Brazil. 



