A, reticulate tarsus of black-bellied pic 



serial foot 



lover; 



Fig. 456u. Types of birds' feet. 



B, scutellate tarsus of meadow-lark; C, booted tarsus of robin; D, curse 

 of ostrich; E, mortal foot of prairie-chicken; F, semi-palmated foot of peep; G, 

 totipalmate foot of wood-duck; H, of cormorant; 7, tarso-metatarsus of penguin. 



[To face page 521.] 



