nded at each end. Size 1.55 x 1.10.

312a. VIOSCA'S PIGEON. _Columba fasciata vioscae._

Range.--Southern Lower California. This is a paler variety of the
preceding species and is not noticeably different in its habits, nesting
or eggs.

313. RED-BILLED PIGEON. _Columba flavirostris._

Range.--Mexico and Central America, north to southern Texas, Arizona and
New Mexico.

This species, characterized by its red bill, purplish colored head, neck
and breast and absence of iridescent markings, is abundant in the valley
of the Lower Rio Grande, where they build their frail nests in thickets
and low bushes, and during May and June lay their white eggs. Size of
eggs, 1.55 x 1.05.

314. WHITE-CROWNED PIGEON. _Columba leucocephala._

Range.--Resident of the West Indies; in summer, found on the Florida
Keys. This species, which can be identified by its white crown, nests in
trees or mangroves on certain of the Florida Keys, laying its two white
eggs on its rude platform of sticks and twigs. Size of eggs 1.40 x 1.05.
Nests in April and May.

314.1. SCALED PIGEON. _Columba squamosa._

A West Indian species, a single specimen of which was taken at Key West,
Florida.

A dark colored species, with purplish head, neck and breast; named from
the scaly appearance of the iridescent feathers on the sides of the
neck.

[Illustration 194: White.]
[Illustration: left hand margin.]

Page 193

315. PASSENGER PIGEON. _Ectopistes migratorius._

Range.--Formerly, North America east of the Rockies; casually seen in
the upper Mississippi Valley, now extinct.

A handsome species (see frontispiece) with ruddy underparts, grayish
upperparts and a long graduated tail. This species years ago found in
flocks of thousands or millions, is now practically exterminated,
chiefly by being hunted and trapped. A few pairs probably now nest in
the interior, from northern United States to Hudson Bay. Their nests are
very rude, frail platforms of twigs, on which two white eggs are laid,
they being longer and narrower, comparatively, than those of other
species. Size of eggs, 1.50 x 1.02. Data.--Southwest shore of Lake
Manitoba, June 1, 1891. Nest of twigs in an aspen tree.

316. Mourning Dove. _Zenaidura macroura carolinensis._

Range.--North America from New England, Manitoba and British Columbia,
southward.

Now that the Passenger Pigeon has disappeared, this species becomes the
only one found in the east, with the exception of the