. A history of British birds . re a dark band across the middleof the wing ; the remaining portion of the secondaries white ;the tail is graduated, the feathers of the middle being thelongest; the legs and toes pale flesh-colour ; the claws black. The young bird has the base of the bill yellow; the pointblack; irides reddish-brown ; the naked skin of the cheeksand front of the neck livid grey ; the general colour of theplumage dark brown, with a few light-coloured feathers, andthe edges of others indicating the approach to maturity ;great quill-feathers black; legs and toes greyish-brown;claws
. A history of British birds . re a dark band across the middleof the wing ; the remaining portion of the secondaries white ;the tail is graduated, the feathers of the middle being thelongest; the legs and toes pale flesh-colour ; the claws black. The young bird has the base of the bill yellow; the pointblack; irides reddish-brown ; the naked skin of the cheeksand front of the neck livid grey ; the general colour of theplumage dark brown, with a few light-coloured feathers, andthe edges of others indicating the approach to maturity ;great quill-feathers black; legs and toes greyish-brown;claws black. The woodcut at the head of this article represents anadult, and that on the preceding page an immature birdof this species. The subjoined figure shows the sternalapparatus, the posterior portion of which is subject to somevariation, as well in outline as in the presence or absence ofthe foramen by which it is pierced. The specimen fromwhich this figure is drawn possesses a foramen on the rightside but none on the
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Keywords: ., bookauthorsaun, bookcentury1800, bookdecade1870, booksubjectbirds
