7 ° 
Brewster on a Collection of Arizona Birds . 
fulvous-white. The breast and abdomen are everywhere thickly but 
finely spotted with dull black , these markings becoming finer and fainter 
where they border on the anal region. The remaining three (Nos. 538, $ ; 
539, — ; and 540, $ : twenty-five miles north of Tucson, June 16) have the 
wings fully developed, and were all out of the nests when shot. They 
are apparently of about the same respective ages, but nevertheless exhibit 
a good deal of individual variation. No. 538 has the breast and sides 
finely spotted with dark brown, but a central space extending forward 
along the abdomen nearly to the breast is entirely unmarked. No. 535 
has large, rounded, but indistinct blotches of light brown, thickly and 
evenly distributed over the entire under parts, excepting the throat, 
anal region and crissum. No. 539 has a cluster of faint, sagittate spots 
on the centre of the breast, but otherwise is entirely immaculate beneath. 
All three are essentially similar above, and differ from No. 426 in having 
the crown, nape, back, wing-coverts and outer webs of the secondaries 
pale reddish-brown, which, on the rump, is only tinged with chestnut. 
The primaries are dark brown edged with hoary ; the rectrices, dull black 
with a terminal band of pale reddish-chestnut crossing both webs of all 
the feathers, but most broadly those of the outer pairs. 
The adults making up the rest of this series vary a good deal with the 
season at which they were taken. A specimen killed in February is clear 
grayish-brown above, with the breast and abdomen thickly spotted ; and 
one or two others shot early in May are nearly as deeply colored and dis- 
tinctly marked. But most of the breeding birds are either entirely im- 
maculate beneath, or with only a few faint specks scattered here and there 
upon the abdomen. Several of the latter are nearly as pale as my speci- 
mens of H. lecontei , and equally devoid of any special markings. This 
condition apparently is due mainly to the wearing off of the tips of the 
feathers, although the continued action of the sun’s rays doubtless lends 
its aid, and still further bleaches the plumage. 
453, £ ad, Camp Lowell, May 30. Length, 10.30; extent, 13.30. 
4987, (author’s coll.) $ ad., Tucson, Feb. 28, 1880. Wing, 4.25; tail, 
4.84; culmen (chord), .99. 
423, $ ad., twenty-five miles south of Tucson, May 21. Length. 10.40; 
extent 14.20; wing, 4.30; tail, 4.92 ; culmen, 1.06. 
435, $ ad., same locality, Mav 22. Length, 10.30; extent, 13.10: wing, 
4.01; tail, 4.96; culmen, 1.05. 
455 ? $ ad., Camp Lowell, May 30. Length, 10.18; extent, 13.30; 
wing, 4.20; tail, 4.96; culmen, 1.05. 
537, $ ad., twenty-five miles north of Tucson, June 16. Length, 10.10; 
extent, 12.70; wing, 4.14; tail, 4.78; culmen, 1.01. 
583, $ ad., Camp Lowell. June 24. Length, 10.50; extent, 13; wing, 
3.99; tail. 4.95 ; culmen, 1.05. 
454, $ ad., Camp Lowell, May 30. Length, 10.10; extent, 12.70; wing, 
3.95; tail, 4.43; culmen, 1. 
529, $ ad., twenty-five miles north of Tucson, June 16. Length. 10.20; 
.extent, 12.10; wing, 3.63; tail. 4.50; culmen, 1.01. “Iris yellow: legs 
dull bluish,” 
