RHAMPHOCORYS.
Bill Finch-like, above much curved, cutting edge lower mandible toothed in middle ; hind claw slightly curved.
Rhamphocorys clot-bey (Bonaparte). THICK-BILLED LARK.
Above sandy grey, a white spot under eye, ear coverts and sides of neck black, with white spot in centre ; secondaries tipped white (conspicuous in flight), tail feathers, except central pair, which are like back, white with black tips ; beneath white with black spots (thickest in middle). Bill large and massive,
sandy brown. Legs and feet sandy brown. Wing 123-127. Tarsus 24. Bill 18 long, 13-15 high at base (H.). ? somewhat smaller than and less grey above.
Resident.—N. border of Sahara, Tunis and Algeria to Libyan Desert.