Page:Field key to the land birds .. (IA fieldkeytolandbi00knob).pdf/68

38 FIELD KEY TO THE LAND BIRDS.

38

SWALLOWS. — Hinnidinidae.

— Very small, with mouth. Feet. — Small. Food. — Insects caught on the whig. Bill.

ii

large, cleft

These birds are generally seen on the wing, sparingly perching.

They migrate south

some species going

as far as

PURPLE MARTIN.

93.

in the winter,

Southern Brazil.

Progne

subis.

—

Length, 8 inches. Glossy blue-black. Female and young black above; brownish gray below; belly The Martin builds its nest on houses and white. barns, or in boxes hung in trees.

94.

CLIFF OR

chelidon lunifrons.

EAVE SWALLOW.

— Length,

Petro-

Steel blue 6 inches. side of head chestnut; a

above; forehead Avhite; gray-brown ring around the neck breast gray-brown Builds upper tail coverts red-brown. belly white under overhanging rocks, or the eaves of barns,



basket-like nests

95.

made



mud.

BARN SWALLOW.

— Length, 7 inches. nut

of

Chelidon erythrogaster.

Forehead and throat red-chestupper parts steel-blue black underparts white