Fig. 458a.—Cockatoo’s 
beak,the dotted line show- 
ing the position of the up- 
per bill when raised. 
Fig. 452a.—Head of dove. ce, cere; 7, nostril; %, 
EN mandible; ¢, tomia; d, tooth; e, culmen; p, tips 
of mandibles; 7, under mandible; go, gonys; 9, Bape. 
SS —. 
So5 
51 
Fig. 452b.—Topography of the dove. Al, alula; B, belly; Bk, back; Br, breast; 
C, crown; £, ear; F forehead; L, lore: Gc, greater coverts; Lc, lesser coverts; Me, 
middle coverts; N, nape; O, occiput, P. rimaries; S, secondaries; R, rump; Sr, 
scutellate and reticulate tarsus; T, tail; Ta, tertiaries; Tc, tail-coverts; Th, t) oat. 
[To face page 520.1 
