. A history of British birds . ciously removed thence. 472 CERTIIIID^. and some of them placed in very different families. Theaffinity between the species of Certhia as now restricted andsome of the true Wrens is very evident, and on the otherhand, through several exotic genera, a transition may beeasily traced to the next family to be mentioned, the ornithologists who unite Ccrthia, Sitta and the inter-mediate genera in one family may be justified, but thesystematists who place the Treecreepers near the Wood-peckers take a very erroneous view of the characters whichreally determ
. A history of British birds . ciously removed thence. 472 CERTIIIID^. and some of them placed in very different families. Theaffinity between the species of Certhia as now restricted andsome of the true Wrens is very evident, and on the otherhand, through several exotic genera, a transition may beeasily traced to the next family to be mentioned, the ornithologists who unite Ccrthia, Sitta and the inter-mediate genera in one family may be justified, but thesystematists who place the Treecreepers near the Wood-peckers take a very erroneous view of the characters whichreally determine the affinities of birds. The Picidce possessno structural character in common with the Certhildte as awhole which is not shared by many other families that no onehas ever thought of allying to the former, for the stiffenedtail-feathers are only found in some forms of the latter andnot generally. There is no doubt, it is true, of the two groupshaving certain somewhat similar habits, but these do not gofar in PAS8ERES. NTITTIATCH. 473 :hi
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Keywords: ., bookauthorsaun, bookcentury1800, bookdecade1870, booksubjectbirds
