BIRDS OF NORTH AND MIDDLE AMERICA 



59 



mostly roundish or hexagonal scales; middle toe about three-fourths as 

 long as tarsus, the lateral toes reaching to or very slightly beyond its 

 penultimate articulation; hallux shorter than combined length of first 

 three phalanges of outer toe; claws rather long, rather strongly curved, 

 compressed. 



Figure 6. — Oreopliasis derbianus. 



