Fig. 453o. Cockatoo's 

 beak, the dotted line show- 

 ing the position of the up- 

 per bill when raised. 



Fig. 452a. Head of dove, ce, cere; n, nostril; w, 

 upper mandible; t, tomia; d, tooth; e, culmen; p, tips 

 of mandibles; i, under mandible; go, gonys; g, gape. 



Al 



Br 



Fig. 4526. Topography of the dove. Al, alula; B, belly; Bfc, back; Br, breast; 

 C, crown; E, ear; F, forehead; L, lore; Oc, greater coverts; Lc, lesser coverts; Me, 

 middle coverts; N, nape; O, occiput; P, primaries; S, secondaries; K, rump; Sr, 

 scutellate and reticulate tarsus; T,tail; Ta, tertiaries; Tc, tail-coverts; Th, throat. 



[To face page 520.] 



