CHERSOPHILUS.
Nostrils covered with feathers ; 1st primary only 1 0-I 2 m.m. long ; hind claw slender.
Chersophilus duponti duponti (Vi eillot).
Above brown (occasionally rather rufous) with pale margins and buff edges ; beneath white, tinged buff on breast, streaked dark brown on lower throat, breast, and flanks. Bill dark brown above, lighter below. Legs and feet brownish 91- too. Tarsus 13-14. Bill 17-19 (II.).
Resideni. --N. and C. Tunisia, Hautes Plateaux of Algeria both sides of Atlas, Portugal, S. Spain (rare).
C. duponti margaritie !Koenig). Upper parts pale sandy cinnamon ; streaks on underparts reddish cinnamon. Bill longer, 23-26. In some cases examples of typical form approach this form in colour.
Resident.—Tunisia, south of Atlas, S. Algeria.