Brewster on a Collection of Arizona Birds. 7 1 
557, $ ad., Camp Lowell, June 21. Length, 10; extent. 13.20; wing, 
4.10; tail, 4.60; culmen, .95. 
426, $ juv. first plumage, twenty-five miles south of Tucson, May 22. 
Length, 6.10; extent, 9.40; “Iris light gray; bill dark brown, lighter 
below; legs pale bluish.” Taken from the nest; wings and tail only 
partly developed. 
538, $ juv. first plumage, twenty-five miles north of Tucson, June 16. 
Length, 10. 10; extent, 12.50; wing, 3.77; tail, 4.59 ; culmen, .96. 
539 ? — juv- first plumage, same locality and date. Length, 9.80; extent, 
12.70; wing, 3.92; tail, 4.67; culmen, .92. 
540, $ juv. first plumage, same locality and date. Length, 10; extent, 
12.80; wing, 3.90; tail, 4 .55; culmen, .95. 
7 . Harporhynchus curvirostris palmeri Ridgw. Pal- 
mer’s Thrasher. — During the present trip this Thrasher was 
met with at various points in the desert region about Tucson and 
Camp Lowell, where it was one of the most abundant and char- 
acteristic summer birds. Its favorite haunts were barren wastes 
covered with cactuses and stunted mesquites ; but, like many other 
desert species, it occasionally visited the more fertile valleys to 
drink at the springs and water-holes. At these latter places spec- 
imens were obtained without much difficulty, but on all other 
occasions they were exceedingly shy and wary. In February, 
1880, Mr. Stephens found Palmer’s Thrasher at Phoenix, and he 
also took winter specimens along the San Pedro River A 
Numerous nests were taken. The one before me was placed 
in a cholla at a height of about seven feet. It is composed out- 
wardly of large twigs, and is lined with bleached grasses. 
Although by no means a rude structure, it suffers by comparison 
with the nest of H. bendirei , its construction being simpler, and 
all the materials much coarser. The three eggs which it con- 
tained were only slightly incubated on June 14. They measure 
respectively i.c>5X.S2, i.c> 9X-82, and i.o 8X*83* They are pale 
greenish-blue, finely and very evenly spotted with brown and 
lavender. The number of eggs making up this set was not 
exceeded in any of the others examined by Mr. Stephens. 
The series, of skins embraces no less than twenty-two examples, and 
very fully illustrates all the variations of age and season. Among the 
number are several in the hitherto undescribed first plumage. The 
* Its distribution in Arizona is apparently limited to a comparatively small area 
which, according to Mr. Stephens’ experience, is bounded on the east by the valley of 
the San Pedro ; on the west by a point “ a few miles east of the Hassayampa, on the 
desert between it and Salt River.” 
