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 illustrated by 6 steel plates and upwards of 250 woodcuts birds 92 sylticolid warblers gen 30 31 as at present constituted the sylvicolidce comprising upwards of a hundred genuine species may be considered to represent in america to which they are confined the sylviidce or typical old world warblers i divide them into three subfamilies uniting the geothhjxgtincb of baird with the true sylvic pfyp52.jpg from north point约炮伴游微信f68k69学生小妹兼职 nvk View Photo