. A history of British birds . The second representation is taken from the sternum ofan old female Crane, and exhibits the trachea still fartherextended, and occupying nearly the whole cavity between. the two bony plates forming the keel: a portion of theplate nearest the observer in both these illustrations being CKANE. 191 represented as cut away, to shew the character and depthof the insertion. It will be observed that the furcula, or merrythought, isnot here a single, slightly-attached bone, but has the pointof union of the two branches firmly ossified to the keel, ormay be considered as a
. A history of British birds . The second representation is taken from the sternum ofan old female Crane, and exhibits the trachea still fartherextended, and occupying nearly the whole cavity between. the two bony plates forming the keel: a portion of theplate nearest the observer in both these illustrations being CKANE. 191 represented as cut away, to shew the character and depthof the insertion. It will be observed that the furcula, or merrythought, isnot here a single, slightly-attached bone, but has the pointof union of the two branches firmly ossified to the keel, ormay be considered as a prolongation of the anterior portionof the keel itself extended to the head of each clavicle, andaffording a firm support to the wings.* In the adult male, the beak is greenish-horn, flesh-colouredat the base, lighter in colour towards the point; the iridesreddish; the forehead black ; the crown red and warty ; napeand upper neck, dark bluish-ash ; chin, throat, and front ofthe neck, of the same dark colour, but descending four or fiveinches lower in front; from the eye, over the ear-coverts, anddownwards on the side of the neck, dull white ; general colourof the back, wings, rump, tail-feath
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Keywords: ., bookauthorsaun, bookcentury1800, bookdecade1870, booksubjectbirds
