3. 



FIG. 45. HEAD OP BROAD-BILLED WHALE BIRD, SHOWING THE COMB AND POUCH USED IN FEEDING (see p. 105). 



Pio. 46. MOULTED FEATHERS OP A GULL AND CUBLEW, SHOWING THE VALUE OF PIGMENTATION IN RESISTING 



WEAR AND TEAR (see p. 26). 



Tu face p. 104. 



