

EXPLANATION OF PLATE 7. 



Fig. 1. A foot formed for walking and perching, claws retractile; as in 

 the genus Falco. 



Fig. 2. A foot formed for walking and perching, claws not retractile, as 

 in the Gallinaceous tribe. 



Fig. 3. A climbing foot as in the Woodpeckers, Picus. 



Fig. 4. A walking foot, as in the genus Corvus. 



Fig. 5. Foot of the King.fisher, showing the situation and connection of 

 the toes. 



Fig. 6. A spurred leg, as in the genus Phasianus. 



Fig. 7. A leg bare above the knee, as in all the Waders. 



Fig. 8. A semi-palmated foot, as in the genus Ardea. 



Fig. 9. A pinnated foot, with the edges of the toes scalloped, as in the 

 genera Fulica, Phalaropus. 



Fig. 10. A lobated foot, the toes margined by membranous edgingf, aa 

 in the genus Podiceps. 



Fig. 11. A three-toed webbed foot as in the genus Alca, Uria. 



Fig. 12. A palmated foot, as in the genera Anas, Recurvirostra. 



Fig. 13. A palmated foot, with four toes connected, as in the genn* 

 Pelicanus. 



Fig. 14. The Goldfinch ; a, beak or bill, 6, the front, c, the cheek, 

 <7, the hind-head, or occiput, c, the breast, /, the back, g t spurious wing, 

 A, shoulder, and lesser wing coverts, t, secondary quill feathers, j, j, 

 greater quill feathers, fc, tertials, Z, tail coverts-, m, tail, n, great wing 

 coverts, o, auricles or auditory conch, p, the throat. 



Fig. 15. A spur. 



Fig. 16 A pectinated foot, as in the genus Tetrao. 





