590 COLLEGE ZOOLOGY 



Order 12. Procellariiformes. ALBATROSSES and PETRELS. 

 Marine birds with webbed toes; powers of flight, great; sheath 

 of bill of several pieces; three families. Examples: Diomedea, 

 Albatross (Fig. 488); Procellaria, Petrel (Fig. 489). 



Order 13. Ciconiiformes. STORK-LIKE BIRDS. Aquatic or 

 marsh-birds with feet adapted for wading; four suborders, one 

 superfamily, and thirteen families. Examples: PELECANID^E, 

 Pelicans; PHALACROCORACID.E, Cormorants (Fig. 490); AN- 

 HINGID^E, Snake-birds; ARDEID/E, Herons; IBIDID^E, Ibises; 

 PHCENICOPTERID.E, Flamingos (Fig. 491). 



Order 14. Anseriformes. GOOSE-LIKE BIRDS. Aquatic 

 birds with beak covered by a soft, sensitive membrane and edged 

 with horny lamellae ; two suborders and two families. Examples : 

 PALAMEDEID.E, Screamers; ANATID^, Swans, Geese, and 

 Ducks (Fig. 492). 



Order 15. Falconiformes. FALCON-LIKE BIRDS. Carniv- 

 orous birds with curved beak, hooked at the end; feet adapted 

 for perching and provided with strong, sharp claws; three sub- 

 orders and four families. Examples: CATHARTID^E, American 

 Vultures; GYPOGERANID^E, Secretary-birds; FALCONID.E, Falcons; 

 BUTEONID^E, Eagles, Hawks, Vultures, etc. (Figs. 493-495). 



Order 16. Galliformes. FOWL-LIKE BIRDS. Terrestrial or 

 arboreal birds with feet adapted for perching; four suborders and 

 seven families. Examples: PHASIANID.E, Turkeys, Quails, 

 Pheasant, etc.: OPISTHOCOMID.E, Hoactzin. 



Order 17. Gruiformes. CRANE-LIKE BIRDS. Mostly marsh 

 birds; seven families. Examples: RALLID^E, Rails; GRUID.E, 

 Cranes. 



Order 18. Charadriiformes. PLOVER-LIKE BIRDS. Terres- 

 trial, arboreal, or marine birds; four suborders and twelve 

 families. Examples: CHARADRIID.-E, Plovers, Snipes, and 

 Curlews; LARID^:, Gulls and Terns (Fig. 497); ALCID.E, Auks 

 (Fig. 498); COLUMBID^E, Pigeons (Fig. 470). 



Order 19. Cuculiformes. CUCKOO-LIKE BIRDS. Arboreal 

 birds with first and fourth toes directed backwards; fourth toe 



