AVES. 
169 
Corvus corax. —The Raven. 
Plate XXXIX. fig. 5. 
Black and glossy, back shining with an iridescent lustre, ot 
blue and purple; tail nearly rounded; iris with a double circle 
of gray and brown. Two feet long. Inhabits Europe and 
America. 
Corvus cornix. — The Hooded Crow. 
Plate XXXIX. fig. 6. 
Head, throat, wings, and tail, iridescent-black ; rest of the 
plumage ash-coloured; irides brown; bill and feet black. 
Twenty-one inches long. Inhabits Europe and Asia. 
Corvus monedula. — The Jack-Daw. 
Plate XXXIX. fig. 7. 
Sooty-black; crown deep iridescent-black; occiput and upper 
part of the neck cinereous ; irides light bluish-gray. Thirteen 
inches long. Inhabits Europe. 
Genus 5. —GARRULUS.— Vieillot. 
Generic Character. —Bill of medium size, robust, edges thin 
and cutting, beset with setaceous feathers at its base, pointing 
outwards; upper mandible hollow, and curved towards the 
point; nostrils hid by basal feathers; tarsus annulated; middle 
toes attached from the base of the exterior, but completely sepa¬ 
rated from the interior toe ; wings of medium length ; bastard 
feathers short, rounded at their extremities; the three first 
remiges equal, the fourth and fifth quills longer than the others; 
tail wedge-shaped, consisting of twelve feathers. 
Garrulus pica. — The Magpie. 
Plate XXXIX. fig. 8. 
Plumage iridescent-black, except the venter and scapulars, 
which are pure white; the wings and tail exhibit strong vari¬ 
ation of colour of blue, green, and purple ; bill black; irides 
o 
