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Okder V.— ZYGODACTYLI. 
Family PICID^. ( Bonaparta.) 
Genus Picus. ( Linneeus.) 
Generic Characters . — Beak strong, cuneiform, or rounded, and 
grooved above, about as long as tlie head, straiglit, and 
pointed; nostrils open, oval, more or less bid by the setaceous 
feathers which cover the base of the beak. Tongue very 
mobile, capable of being projected from the mouth, armed 
with small sharp needle-like processes bent backwards and 
horny towards the tip. Feet robust and short, with three or 
four toes; claws arched, compressed, and pointed, formed for 
climbing. AVings elongated, the bastard quill short, the third 
and fourth the longest. Tail composed of quills having stiff 
and elastic shafts, ten or twelve in number, and serving as 
a prop in climbing. 
GEEY WOODPECKER. 
Picus canus. 
Picus canus, 
“ viridis Norveyicus, 
“ Norveyicus, 
“ viridis canus. 
Guelin, 1788. 
Bkisson, 1709. 
Latham, 1790. 
Meyer. 
Boie. Bonaparte. 
Oe the French. 
Of the Germans. 
Stor. 
Gecinus canus. 
Pic vert Cendre, 
Grauer Grilnspecht, 
Piccliio verde di Norveyia, 
