. Handbook of birds of the western United States, including the great plains, great basin, Pacific slope, and lower Rio Grande valley . izona . . azurea, p. Under parts with blue. 2. Under parts wholly blue and white arctica, p. 470. 2. Under parts blue and brown. 3. Back wholly chestnut bairdi, p. 476. 3. Back blue in middle, chestnut on sides . occidentalis. p. 476. 766. Sialia sialis (Linn.). Bluebird. Adult male. — Upper parts bright blue; under parts reddishfading to white on belly. In winter,feathers of back bordered with female : upper parts gray, deep-ening to blue o
. Handbook of birds of the western United States, including the great plains, great basin, Pacific slope, and lower Rio Grande valley . izona . . azurea, p. Under parts with blue. 2. Under parts wholly blue and white arctica, p. 470. 2. Under parts blue and brown. 3. Back wholly chestnut bairdi, p. 476. 3. Back blue in middle, chestnut on sides . occidentalis. p. 476. 766. Sialia sialis (Linn.). Bluebird. Adult male. — Upper parts bright blue; under parts reddishfading to white on belly. In winter,feathers of back bordered with female : upper parts gray, deep-ening to blue on rump, wings, andtail ; under parts dull brown, beconi-ing whitish on belly. Young: upperparts dark gray, streaked with whitt?;under parts gray, spotte<l with : length )», wing, , tail ;)(), bill .(; Fe-male: :).lK), tail Dislrihiilion. — Breeds in Transit i«»iiand Upper Sonoran zones from Mani-toba and Ontariu soiitli ti) (Julf ofMexico, and from the Atlantic to theRocky Mountains ; winters from themiddle states to the Gulf states and Cuba. 476 THRUSHES, SOLITAIRES, BLUEBIRDS, ETC. Nest. — In holes in trees, stumps, posts, or bird-boxes ; made largely ofdried grasses. J^ggs: 4 to 7, plain pale greenish blue. Food. — Largely caterpillars, grasshoppers, and crickets; also wild ber-ries, like hackberry and woodbine. The eastern bluebird ranges west to the base of the Rocky Moun-tains, being a rare summer resident in Colorado. 766a. S. S. azurea Baird. Azure Bluebird. Similar to sialis. but sides of neck brown, and under parts less ruddybrown ; upper parts sometimes greenish blue, suggesting arctica. Length Male: wing , tail , bill . Female:wing , tail Distribution. — Southern Arizona and Mexico. 767. Sialia mexicana OCCidentalis (Towns.). Western Blue- bird. Adult male. — Upper parts dark purplish blue and chestnut; throat pur-plish blue;
Size: 1573px × 1589px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbaileyfl, bookcentury1900, bookdecade1900, bookyear1904
