CLASSIFICATION AND NOMENCLATURE. I7 



2. Other species, as Grouse, Pigeons, Finches, Crows, and 

 Warblers, obtain their food by searching for it on the ground 

 or on plants, employing their wings to carry them to the places 

 in w^hich it is likely to be found. The birds of this section, 

 then, are peculiarly Terrestrial^ Ates Terrestres^ oy Ambulator ice. 



3. Many, as Gallinules, Plovers, Snijies, and Herons, are 

 adapted by their long slender legs, bared above the heel, for 

 searching the shores or marshy grounds, although some, uniting 

 this group with the preceding, run on dry land, and others, 

 not expert at running, take their stand in the water or by its 

 margin, and seize their prey when it comes within reach. 

 The birds of this group may be tQviw^^ Ainphibious ov Wading, 

 Aves Litorales^ or Grallatorice. 



4. Lastly, there are species, as Ducks, Divers, and Gulls, 

 w^hich are formed for swimming, and of which many dive, 

 while others plunge into the water, and some reach at substan- 

 ces beneath its surface. They are all capable of walking in 

 some degree. These are the Aquatic Birds^ Aves Aquaticw, or 

 JS/'atatoriw. 



All these primary groups, which I consider merely as sec- 

 tional, and as coming in the place of those, familiar to every 

 person, of Land Birds and Water Birds, are composed of 

 orders equivalent to each other, and characterized by pecu- 

 liarities of form and structure. Thus, 



CLASS IL AVES. BIRDS. 



SECTION I. AVES VOLATORI^. AERIAL BIRDS. 

 Order. 



1 . Raptores, Plunderers or Birds of Prey : Vultures, Eagles 



and Hawks, Owls. 



2. Excursores, Snatchers : Shrikes and Flycatchers. 



8. Volitatores, Skimmers : Swallows, Bee-eaters, and Goat- 

 suckers. 



4. Immersores, Dippers: Kingsfishers. 



SECTIOX II. AVES AMBULATORI.E. LAND BIRDS. 



5. Easores, Scrapers or Gallinaceous Birds : Pheasants, 



Grouse, Partridges. 



c 



