n by having their side
bound to a branch. Their eggs, which are laid in May and June, are
white, streaked and lined with blackish brown and grayish. Size .90 x
.60.

[Illustration: Arizona Hooded Oriole. Orchard Oriole.]
[Illustration 323: Bluish white.]
[Illustration: Baltimore Oriole.]
[Illustration: White.]
[Illustration: right hand margin.]

Page 322

508. BULLOCK'S ORIOLE. _Icterus bullocki._

Range.--North America, west of the Plains and from British Columbia
southward, wintering in Mexico.

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 distinguishable 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 making a very
handsome wreath about the large end. Size of eggs, .94 x .62.

509. RUSTY BLACKBIRD. _Euphagus carolinus._

Range.--North America east of the Plains, breeding from northern New
England and the Adirondacks northward; winters in southern United
States.

But few of these birds breed within our borders, the majority 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.

510. BREWER'S BLACKBIRD. _Euphagus cyanocephalus._

Range.--North America west of the Plains, and from British Columbia and
Saskatchewan southward.

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 abundantly 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 streaked with blackish. Size 1.00 x .75.

[Illustration 324: Bluish white.]
[Illustration: Rusty Blackbi