y feet above it. Their eggs are
greenish blue; size 1.15 x .80. Eggs may be found at any time from May
until July or August as they raise several broods a season.

[Illustration 448: Hermit Thrush.]
[Illustration: Bluish green.]
[Illustration: Greenish blue.]
[Illustration: American Robin.]
[Illustration: left hand margin.]

Page 447

761b. SOUTHERN ROBIN. _Planesticus migratorius achrusterus._

Range.--The Carolinas and Georgia.

The eggs of this bird, which is said to be smaller and duller colored
than the northern variety, show no differences in any respect.

762. SAN LUCAS ROBIN. _Planesticus confinis._

Range.--Southern Lower California.

This is a very much paler form of the American Robin; its eggs probably
will not differ from those of the others.

[Illustration 449: J. B. Pardoe. NEST AND EGGS OF ROBIN.]
[Illustration: right hand margin.]

Page 448

763. VARIED THRUSH. _Ixoreus naevius naevius._

Range.--Pacific coast from northern California to Alaska; south to
Mexico in winter.

These handsome birds breed abundantly in Alaska and locally in mountain
ranges south to northern California. They nest at low elevations in
trees, making them of moss, twigs, weeds and grasses, forming a flat
shallow structure. Their eggs are greenish blue sharply but sparingly
spotted with dark brown; size 1.12 x .80. Data.--Delta of Kowak River,
Alaska, June 11, 1899. Four eggs. Nest 12 feet from the ground, against
the trunk of a slender spruce and supported by a clump of stiff twigs.

763a. NORTHERN VARIED THRUSH. _Ixoreus naevius meruloides._

Range.--Interior of western North America, breeding from British
Columbia to Alaska. Its habits and eggs do not differ from those of the
last.

764. SIBERIAN RED-SPOTTED BLUETHROAT. _Cyanosylvia suecica robusta._

Range.--Northern Asia; casually to Alaska.

This beautiful foreigner nests on the ground and lays four to six
greenish blue eggs, spotted with reddish brown; size .75 x .50.

765. WHEATEAR. _Saxicola oenanthe oenanthe._

Range.--Asia; casual in Alaska in summer; nesting habits and eggs like
the next.

765a. GREENLAND WHEATEAR. _Saxicola oenanthe leucorhoa._

Range.--Europe and Greenland; casual on the Atlantic coast of North
America.

This very abundant Old World species is a common breeding bird in
Greenland and probably also in Labrador. They nest in crevices of
quarries, holes in the ground, or stone walls, making a rude nest of
weeds, m