1112 U.S. NATIONAL MUSEUM BULLETIN 237 part 2 



three young in nest, one probably having been "hu-ed away by the 

 parents"; at this time the yoxmg were 10 days old. 



Hargrave (1936) found that the dorsalis male parent did most of the 

 feeding of the first broods after they left the nest. The male in his 

 report fathered three broods in one season (determined by trapping 

 and banding with the young as decoys). After the third brood left 

 the nest "both adults were observed" feeding them. 



Plumages, — ^As previously mentioned, A. R. Phillips states that 

 one-day-old young of dorsalis were naked with some gray down on 

 head and rump. R, B. Rockwell (1910) described newly-hatched 

 young he saw in Colorado as "pinkish little creatures irregularly 

 covered with very fine grayish down." R. R. Graber (1955) says one 

 of two Colorado caniceps nestlings had "smoky gray [natal] down on 

 the rump," while the other had "down on the side of the crown." 

 Graber describes the juvenal plumage: "Forehead and crown Ught 

 gray, heavily streaked with black. Nape tinged with buff. Back 

 mahogany red, streaked with black. Riunp buffy, obscurely streaked 

 with blackish. Upper tail coverts buffy gray, obscurely spotted with 

 blackish. Rec trices blackish gray except outer two pairs white and 

 third from outside about half white. Remiges black, narrowly white- 

 edged (tertials edged with mouse gray). Coverts edged with gray. 

 Secondary coverts tipped with whitish (two obscure wing bars) . Lores 

 dark gray. Auriculars gray, postauriculars like nape. Subauriculars 

 streaked, blackish and white. Chin and throat white, obscurely 

 spotted with gray. Underparts largely white, the sides and flanks 

 hght buffy. Chest and sides streaked with blackish (triangular marks 

 with apex anterior). Belly and crissum white. Legs gray." 



Two New Mexico dorsalis in juvenal plumage, apparently somewhat 

 more advanced than the caniceps described above, were similar to the 

 caniceps but in general hghter-colored. These Graber describes: 

 "Forehead light gray. Crown and nape gray, streaked wdth black 

 (nape more sparsely). Back Hght rusty (burnt sienna of Ridgway), 

 sparsely streaked with black. Rump and upper tail coverts light, 

 buffy-tinged gray, sparsely streaked with blackish. Rectrices largely 

 dark gray, outer two pairs white (some white on third from outside). 

 Remiges black, narrowly light edged (tertials broadly edged with 

 gray). Coverts edged with gray and buff, secondary coverts tipped 

 narrowly with white (narrow wing bars). Lores black. Auriculars 

 and postauriculars gray, unmarked. Chin unmarked whitish. Other 

 underparts white. Throat, chest, sides, and flanks finely spotted and 

 streaked with blackish. Legs gray." 



Miller (1941b) briefly describes the adult plumage for both races: 



Iris dark brown; lower mandible flesh-colored, upper mandible black or flesh- 

 oolored. Back with sharply defined mahogany red area, confined normally to 



