. A history of British birds . ipe of buff, with a black spot at the tip; thoseof the greater coverts and tertials have broad external edgesof rich buff: the chin is white; the other lower parts tingedwith fawn-colour and marked with black spots. As in all the truly British Thrushes, pale or white varietiesof this species have been met with; and, indeed examplesexhibiting partial or total albinism are so far from rareamong birds generally, that it is proposed not to mentionthem in the course of this work unless in such cases aspossess some special interest. Though much has been writtenon the s
. A history of British birds . ipe of buff, with a black spot at the tip; thoseof the greater coverts and tertials have broad external edgesof rich buff: the chin is white; the other lower parts tingedwith fawn-colour and marked with black spots. As in all the truly British Thrushes, pale or white varietiesof this species have been met with; and, indeed examplesexhibiting partial or total albinism are so far from rareamong birds generally, that it is proposed not to mentionthem in the course of this work unless in such cases aspossess some special interest. Though much has been writtenon the subject, little appears to be known as to the causeof these variations. It has been supposed, and probably withtruth, that they are usually due at first to constitutionalweakness, which experience shows to be often hereditary;but it must be remarked that the tendency to albinism ismuch more frequent in some groups than in others. The vignette represents the breast-bone of the Blackbirdillustrating its form in the o-enus 264 : PASSE HES. TURDIDJ2
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbirds, bookyear1885
