. The birds of Washington; a complete, scientific and popular account of the 372 species of birds found in the state . 4 in. deep; internally 2 in. wide by I Eggs: 1-4, usually 3 or 4, pale bluish green lightly doited with rufous andblackish, chiefly about larger end. Ay. size .67x48 (). Season:March-September, but most abundant in April; one brood. General Range.—North America at large, breeding in higher latitudes, andin coniferous forests of the West to southern boundary of United States; alsosparingly in northeastern United States; irregularly south in winter to Gulf ofMexi


. The birds of Washington; a complete, scientific and popular account of the 372 species of birds found in the state . 4 in. deep; internally 2 in. wide by I Eggs: 1-4, usually 3 or 4, pale bluish green lightly doited with rufous andblackish, chiefly about larger end. Ay. size .67x48 (). Season:March-September, but most abundant in April; one brood. General Range.—North America at large, breeding in higher latitudes, andin coniferous forests of the West to southern boundary of United States; alsosparingly in northeastern United States; irregularly south in winter to Gulf ofMexico. Range in Washington.—In summer coextensive with evergreen timber, butespecially common in mountains just below limit of trees; in winter more local-ized, or irregularly absent. Authorities.—Chrysomitris pinus Bonap. Baird. Rep. Pac. R. R. Surv. II. 1858, p. 425. T. C&S. L-\ Rh. D. D-\ Kk. J. B. E. Specimens.—U. of W. Prov. B. E. P. IN designing the Siskin, Nature achieved another triumph in heavy streaky pattern, worked out in dusky olive on a buffy brown THE PINE SISKIN. 85. Taken at Longmircs Springs. From a Photograph Copyright, 1908, by W. L. LITTLE SISKINS. THE MOUNTAIN* AS A BACKGROUND. base, prepares the bird for self-effacement in any environment; while thesulphur-colored water-mark of the outspread wings barely redeems its ownerfrom sheer oblivion. This remark applies, however, only to plumage. Inbehavior the Siskin is anything but a forgettable bird-person. Whatever be the time of year, Siskins roam about in happy, rollickingbands, comprising from a score to several hundred individuals. They movewith energy in the communal flight, while their incessant change of relativepositions in flock suggests those intramolecular vibrations of matter, which 86 THE PINE SISKIN. the new physicists are telling us about. When a bird is sighted alone,one sees that it is the graceful, undulatory, or looping,* flight of cousinGoldfinch which


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