TREE VI.
Oscines. (Singers.) i Clamatores. (Crow, etc.) Raptores. (Birds of Prey.) Scansores. (Climbers.) Doves. Dodo. Pigeons. Leaving egg blind. Grallatores. (Waders. ) Rasores. Natatores. (Scratchers.) (Swimmers.) Peneiopidse. Ostrich. Rhea. Emeu. Saurophalli. (Birds leaving egg seeing.) ( Reptile-like Birds.) Archeopteryx. (Most ancient Bird.) I (Bird-like Reptiles.) Compsognathus. Apteryx. . I Dinornis. I Cassowary. Dinosaurian Reptiles.
BIRDS.
Although the class of Birds presents great variety as regards differences in shape, color, manner of living, etc., they can be represented by the types of swimming (Fig. 74) (duck), wading (Fig. 75) (snipe), scratching (Fig. 76) (chicken), singing (Fig. 78) (lark), flying (humming-bird),
