. Key to North American birds. 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, inclusive of Greenland and lower California, with which are incorporated General ornithology: an outline of the structure and classification of birds; and Field ornithology, a manual of collecting, preparing, and preserving birds. Birds; Birds; 1887. 116 GEXESAL ORNITHOLOGY. have received particular names. A rectrix broad to the very tip, and there cut squarely off. is said to be truncate ; uue sucli cut obli
. Key to North American birds. 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, inclusive of Greenland and lower California, with which are incorporated General ornithology: an outline of the structure and classification of birds; and Field ornithology, a manual of collecting, preparing, and preserving birds. Birds; Birds; 1887. 116 GEXESAL ORNITHOLOGY. have received particular names. A rectrix broad to the very tip, and there cut squarely off. is said to be truncate ; uue sucli cut obliquely off' is incised, especially wlieu, as ofteu happeus, the outline of the cut-off'is concave. A linear reetrix is very uarrou-, with parallel sides: a lanceo- late one is broader at the base, thence tapering regularly aud gradually ; the tip. A notably pioiuted reetrix is said to be acute : wheu the piointiug is produced by abrupt centraetion near the tip, as in most woodpeckers, the feather is acuminate. A very loug aud sleuder, more or less linear feather is called Jilainentous. as the lateral pair of a barn swallow or most sea swallows. I'he vanes sometimes enlarge abruptly at the end, forming a spoon-shaped or spatulate feather: or such a spoou may result fi'oui narrowing of the vanes near the end, or their entire ab- sence, as in the "â rack- t â of a saw-biQ (Mo- nu)tus). The vaues are s uietiuies wa\-y as if limped: our is hue example of this. â ^ metiiues the vaues \u entirely loosened, the barbs being remote ti m each other, as iu tl e exotic genus Stipi- f â »,<, and some parts t tlie wondei-ful caudal \j peudage of the mah' hie-bird {Menura nu- 2)erba). ^Yheu the rha- his projects beyond the \ iiies, the feather is J inij!ie. or better, inu- natc (Lat. mucro, a jucker). as excellently li iwu ill the chimney- ^«ift. Cluetura (tig. 'IT). A pair of feathers abruptly extending far beyond the others are called lon(]-e,e^erted, after the
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbirds, bookyear1887
