Order 5 Anseriformes ("goose-like"). Swan, goose, and duck family. 



- Order 6 Cranes. Wading marsh-dwellers. Crane family, limpkin 

 family, rail family. 



Order 7 Shore-birds tribe. Gull and tern family, plover and turnstone 

 family, woodcock, snipe, and sandpiper family, auk and puffin family, 

 skinner family. 



Order 8 Falcon tribe. Diurnal birds of prey. Vulture family, kite, 

 hawk, and eagle family, falcon family. 



Order 9 Owl tribe. Nocturnal birds of prey. Typical owl family, 

 barn-owl family. 



Order 10 Galliformes ("hen-like"). Hen family, grouse and ptar- 

 migan family, partridge and quail family, pheasant family, turkey 

 family. 



Order 11 Columbiformes ("pigeon-like"). Pigeon and dove family. 



Order 12 Psittaciformes ("parrot-like"). Parrot, parakeet, and 

 macaw family. 



Order 13 Cuculiformes ("cuckoo-like"). Cuckoo, road-runner, and 

 anis family. 



Order 14 Caprimulgiformes ("goatsucker-like"). Goatsucker family 

 — nighthawks, whippoorwills, etc. 



Order 15 Hummingbird tribe. Swift family, hummingbird family. 



Order 16 Kingfisher tribe. Kingfisher family. 



Order 17 Piciformes ("woodpecker-like"). Woodpecker family, 

 which includes flickers and sapsuckers. 



Order 18 Passeriformes ("sparrow-hke"). Perching birds; in- 

 cludes most of our common birds. Lark family, swallow family, jag, 

 magpie and crow family, titmouse and bush-tit family, nuthatch 

 family, creeper family, wren family, mockingbird and thrasher family 

 (see illustration, p. 424), thrush and bluebird family, warbler and king- 

 let family, wagtail and pipit family, waxwing family, shrike family, 

 starling family, vireo family, wood-warbler family, weaver-finch and 

 sparrow family, European tree sparrow, meadowlark and blackbird 

 family, tanager family, grosbeak, finch and bunting family. 



CLASS 5 MAMMALS ("breast"). Suckle young; hairy covering; four- 

 chambered heart; warm-blooded; diaphragm. Except in the orders mar- 

 supials and monotremes, the embryos receive nourishment from the blood 

 of the mother through a placenta, which becomes embedded in the uterus wall 

 of the mother, and the young reach an advanced stage of development before 

 birth (see page 423). 



SUBCLASS and Order 1 Monotremes Egg-laying mammals; eggs hatch 

 outside the body. Examples, duckbill, spiny anteater. 



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