THE BIRD BOOK 
Rusty Blackbird 
Brewster’s Blackbird 
508. Bullock’s Oriole. Icterus bullocki. 
Range.— North America, west of the Plains 
and from British Columbia southward, winter- 
This handsome species 
is as abundant in the west 
as the Baltimore Oriole is 
in the east, and breeds 
throughout its United 
States range. Their nests 
are similarly made and in 
similar locations, and the 
eggs are hardly distin- 
guishable from those of the preceding, but the 
ground color is generally of a pale bluish white 
tint and the markings are usually finer, the 
lines running around the eggs and often mak- 
ing a very handsome wreath about the large 
end. Size of eggs, .94 x .62. 
ing in Mexico. 
50.9. Rusty Blackbird. Euphagus carolinus. 
Range. — North America east of the Plains, breeding from northern New Eng- 
land and the Adirondacks northward; winters in southern United States. 
But few of these birds breed within our borders, the ma- 
jority of them passing on to the interior of Canada. They 
generally nest in pairs, or at the most three or four pairs 
in a locality, building their large substantial nests of moss, 
twigs and grass, lined with fine green grass; this structure 
is situated in bushes or low trees in swampy places and at 
from 3 to 20 feet from the ground. The eggs are laid in 
May or June; they vary from three to five in number, of a 
pale bluish green color, spotted, blotched and clouded with 
shades of brown and gray. Size .96 x .71. 
Range. — North America west of the Plains, and from British Columbia and 
Saskatchewan southward. 
510. Brewer’s Blackbird. Euphagus cyanocephalus. 
This western representative of the preceding is of about 
the same size (10 inches long), but differs in having a 
purplish head and greenish black body. They nest abund- 
antly throughout their range either in bushes or trees at 
low elevations or upon the ground; the nests are made of 
sticks, rootlets and grasses, lined with finer grass and 
moss, and the eggs, which are very variable, are dull 
whitish, clouded and blotched with brownish and streak- 
ed with blackish. Size 1.00 x .75. 
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