Order IV
Steganopodes. -GANNETS, CORMORANTS, PELICANS (Fig. 10), etc.
All the toes, including the hind one, connected by webs. A. Bill generally sharply pointed, without a hawklike hook at its tip. a. Chin, or space between the forks of the lower mandible, feathered. Family Phaëthontida: TROPIC BIRDS (Fig. 11), p. 91. b. Chin bare. ... b. Bill stout and slightly curved at the tip; middle tail-feathers without "flutings". Family Sulida: GANNETS (Fig. 12), p. 92. .. 62. Bill straight and slender; middle tail-feathers fluted. Family Anhingidæ: DARTERS (Fig. 13), p. 93.
B. Bill with a hawklike hook at the tip. a. Lores bare. a¹. Bill over 12.00, with a large pouch.
PELICANS, p. 95. a2. Bill under 12.00, no large pouch. cida: CORMORANTS (Fig. 14), p. 94. ...
Family Pelecanida:
Family Phalacrocorab. Lores feathered. Family Fregatida: MAN-O'-WAR BIRDS (Fig. 15), p. 97.
KEY TO FAMILIES.