(temp) n8178

annotation 00
May be said that head of ♀ when she comes out of hole wd be more conspicuous if crimson; but does not male incubate?? & too many of both sexes have equal or nearly equally crimson heads for this view.—    & th breast in P. validus if crimson in ♀ wd. not be exposed.—
Fine gradation frm head of ♀ with no trace of crimson, th heads of both sexes equally crimson. In a multitude of species thrugout family head of male more crimson than that of ♀. —
[gap]

+n8178/000 Malherbe A, Monographie des Picidées, ou histoire naturelle des picidés, picumninés, yuncinés ou torcols, etc 4 vols, Metz, 1861-1863

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