8 4 
Brewster on a Collection of Arizona Birds. 
I have the Tucson nest just alluded to. It is composed 
outwardly of twigs and weed-stalks ; inwardly of hemp-fibres ; 
while there is a scanty lining of horse-hairs and feathers. Like 
most hole nests it is rather flat, and the rim is thin in places 
where the walls of the cavity encroached on the space within. 
The eggs are white, handsomely wreathed about the larger ends 
with reddish-brown and umber spots, a few of which are also 
scattered over their general surfaces. They measure respectively 
• 58X-46; -58X-46; .62X-46 ; . 6 oX- 47 - The notes accompany- 
ing this set are as follows : — “Nest about six feet above the ground 
in a crevice nearly covered by bark. The bottom of the hole 
contained an old nest ; over this were droppings of wood-rats, and 
the whole filled the cavity nearly to its top. The tree (a mes- 
quite) stood within twenty feet of a frequented road. Female 
sitting. Eggs fresh ; one had been broken and crowded in behind 
the nest by the parent bird.” None of the other sets found by 
Mr. Stephens contained more than three eggs and the present 
clutch is probably an exceptionally large one. 
J11V., first plumage ($ No. 471, Camp Lowell, June 1). — Wing-coverts 
and inner secondaries broadly tipped and edged with pale brownish-fulvous. 
Primaries and rectrices edged and tipped with hoary white. Rump and 
upper tail-coverts yellowishrchestnut. No chestnut on the crown. Other- 
wise colored like the adult. 
Among a number of adults before me the range of individual variation 
is very limited, and is chiefly confined to the females. While it is true 
that some of the latter are indistinguishable from the brightest males, the 
majority have the rump and crown-patches considerably duller, the chest- 
nut being either diluted in shade, or mixed with the color of the back. 
In No. 206 the crown-patch is concealed, the chestnut being restricted to 
the basal portion of the feathers. 
225, $ ad., Tucson, April 18. Length, 4.40; extent, 6.70. 
229, $ ad., Tucson, April 19. Length, 4.40; extent, 6.80. 
231, $ ad., Tucson, April 19. Length. 4.40; extent, 7; wing, 2.35; 
tail, 1.93. 
232, $ ad., Tucson. April 19.- Length, 4.30; extent, 6.80; wing, 2.35; 
tail, 1.95. 
253, d a( L Tucson, April 21. Length, 4.40; extent, 6.70; wing, 2.21; 
tail, 1.87. 
254, J ad., Tucson, April 21. Length, 4.30; extent, 6.70; wing, 2.21; 
tail, 1.95. 
255, $ ad., Tucson, April 21. Length, 4.50; extent, 7.10: wing, 2.23; 
tail, 1.93. 
280, $ ad., Tucson, April 25. Length, 4.40; extent, 7; wing, 2.25: 
tail, 1.95. 
