. The birds of California : a complete, scientific and popular account of the 580 species and subspecies of birds found in the state. Birds; Birds. The Red-bellied Hawk Nesting.— Nest: Of sticks, lined indifferently with bark-strips; placed well up in tree, eucalyptus, sycamore, or live oak. Eggs: 2 to 4; in coloration much like those of preceding species, but usually much more heavily pigmented, sometimes with considerable undershell marking of vinaceous gray. Av. of 14 sets, 38 eggs: x , ( x ); index Extremes: by ( by ). Season:
. The birds of California : a complete, scientific and popular account of the 580 species and subspecies of birds found in the state. Birds; Birds. The Red-bellied Hawk Nesting.— Nest: Of sticks, lined indifferently with bark-strips; placed well up in tree, eucalyptus, sycamore, or live oak. Eggs: 2 to 4; in coloration much like those of preceding species, but usually much more heavily pigmented, sometimes with considerable undershell marking of vinaceous gray. Av. of 14 sets, 38 eggs: x , ( x ); index Extremes: by ( by ). Season: March 20-April 10; one brood. Range of Buleo lineatus.—North America from the southern Canadian provinces to Florida, northern Mexico, and Lower California. Range of B. I. elegans.—Pacific Coast district from southern British Columbia to Lower California and Sonora. Distribution in California.—Fairly common resident locally in Lower Sonoran zone west of the Sierras. Occurs chiefly in the San Joaquin-Sacramento basin and in the warm valleys of the south central coastal ranges and in the San Diegan district. Authorities.—Gambel (Buteo lineatus), Proc. Acad. Nat. Sci. Phila., vol. 1846, p. 45 (Monterej', etc.; voice); Cassin, Proc. Acad. Nat. Sci. Phila., vol. vii., 1855, p. 281 (Buteo elegans, orig. desc.; Calif.); Bendire, Life Hist. N. Am. Birds, vol. i., 1892, p. 227 (nesting habits); Sharp, Condor, vol. viii., 1906, p. 144, figs. (San Diego Co.; desc. nest, eggs, etc.); Pierce, Condor, vol. xxi., 1919, p. 127 (food). ALTHOUGH the Red-shouldered Hawk of the eastern United States is one of the best-known of Raptors, the western representative of the species seems to be not well known, save by a few fortunately placed observers. The range of elegans is much restricted, both locally and gen- erally, as compared with that of B. borealis caluriis; and in those limited sections the species ap- pears to be sharply on the wane. It is best known from the western valleys
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbirds, bookyear1923
