. Key to North American birds [microform] : containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary. Birds; Ornithology; Oiseaux; Ornithologie. , SWALLOWS. UKX. 44, 4"). ii;j Swallows arc insoctivorous, nnil thorcrori! Tniiiratoiy in eoM niul tcmporato lati- tudes; unsurpassed iu iiowors of lliiilit, tlicy are ciialiii'il to i)a-is with case and HwiftiK'ss (Voni one eouutrv to another, as tlic state of llie weatlier may r('((uire. Witli us a lew warm days in Keliruary and .Marel
. Key to North American birds [microform] : containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary. Birds; Ornithology; Oiseaux; Ornithologie. , SWALLOWS. UKX. 44, 4"). ii;j Swallows arc insoctivorous, nnil thorcrori! Tniiiratoiy in eoM niul tcmporato lati- tudes; unsurpassed iu iiowors of lliiilit, tlicy are ciialiii'il to i)a-is with case and HwiftiK'ss (Voni one eouutrv to another, as tlic state of llie weatlier may r('((uire. Witli us a lew warm days in Keliruary and .Mareli often allure tlicm northward, only to 1)0 driven hack again by the eold, giving rise to the well-known adiige. \o hirds arc l)etter known t> all elassiM than tli 'se, an I nom^ so wele )in â to min's abodeâ cherished witnesses of i)eace auil [jlenty in the homestead, dashing ornaments of the busy thoroughfare. The habits of swallows best illustrate the modifving influences of eivili/ation on indigenous birds, formerly, they all bred on tililt's, in banks, in hollows of trees, and similar j)lacea, and many do so still. But most of oin- s|ic('ies have forsaken these pi'lmitive haunts to avail themselves of the convenient artificial nesting piat't's tiiat man, intentionally or otherwise, provides. J^ome are just now in a transition state; thus the purple martin, in setth^d |)arts of the country, chooses the boxes everywhere providi'd for its aeeommodation, while in tiu; West, it retains its ol I custom of breeding in hollow trees. 44. Qonus HIRUNDO Linntcus. Ham tSii'nlJnir. Lustrous stcol blue ; below, nifoiis or palo cliestmit of varying sliado ; foreliead, cliin and tliroat deep chestnut; breast with an iiniicrtcct stocl-bliic collar; tail forlicate, its outer feathers attenuate, all but the iiiitldle pair with white spots on the inner M'cl); bill and feet black. Sexes alike; yoHtvj less lustrous, uuieh i):iler Ixdow, tail simply forked. Wing 4i-4;J ; tail 'Ih to T) inch
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbirds, bookyear1872
