. A guide to the birds of New England and eastern New York; containing a key for each season and short descriptions of over 250 species, with particular reference to their appearance in the field . ked re-gions, that it has been found convenient to employ certainfixed terms to designate the areas where these groups arefound. The sweet gum and the Southern Water-thrush arecharacteristic of the Atlantic Plain from southwestern Con-necticut to Florida ; they are representatives, therefore, ofwhat is known as the Carolinian or Upper Austral Life spruce and the Black and Yellow Warbler occ
. A guide to the birds of New England and eastern New York; containing a key for each season and short descriptions of over 250 species, with particular reference to their appearance in the field . ked re-gions, that it has been found convenient to employ certainfixed terms to designate the areas where these groups arefound. The sweet gum and the Southern Water-thrush arecharacteristic of the Atlantic Plain from southwestern Con-necticut to Florida ; they are representatives, therefore, ofwhat is known as the Carolinian or Upper Austral Life spruce and the Black and Yellow Warbler occur through-out the forested region of Canada ; they are representatives,therefore, in northern New England of the Canadian LifeZone. So closely is the presence or absence of a certain well-marked group of birds correlated with the presence or absenceof the spruce and fir, that the nature of the forests becomesthe first point one must settle with regard to any locality insouthern New Hampshire or Vermont, or northern Massa-chusetts or New York. The accompanying map shows theextent in New England of the Upper Austral and CanadianLife Zones. The country between these zones possesses many birds. y7] Canadian Transition or Alleghanian □ Upper Australor Carolinian Attention ia called to the factthat the Transition Zoneextends up certain river val-leys as indicated on the lists of species breedingin these zones see Appendix,page 341. Longitude West from Greenwich LIFE ZONES 16 A GUIDE TO THE BIRDS found in each of the neighboring belts, and none not sharedby one or the other of them. It has therefore been calledthe Transition Zone. Its boundaries to the north concern uschiefly, for many birds (see p. 342) cease to be found whenwe pass from this Transition belt to the Canadian. Nothing is sharply defined in nature, and so the bounda-ries of these zones, though they may be well defined on maps,have in the actual country a very indefinite outline, one areafading almost insensib
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbirdsne, bookyear1904
