502 PROCEEDINGS OF THE ACADEMY OF 



peared in the midst of this clamor a larger hawk (Buteo harrisi, 

 Aud.), which rushed at once upon the captor of the Chachalaca ; 

 unable to withstand so heavy a charge, he was compelled to give 

 up his honestly captured pre} 7 to a superior force, thus proving 

 the old adage that 'might is right.' The slender but compact 

 figure of our present subject was now seen perched upon a neigh- 

 boring bough, scrutinizing with a vicious eye the more powerful 

 but less active bird of prey, as he vainly attempted to bear off the 

 lifeless form of the Chachalaca; but there was one yet mightier 

 than he: I observed it for a few moments, then shot it, as also the 

 long tailed Hawk, thus securing all three. 



" They build their nest of dry twigs and moss, which is placed 

 in a very tall tree; therefore, I regret that I am unable to describe 

 the eggs." 



Dr. Samuel Cabot in the Boston Journal of Natural History, 

 Yol. IV. pp. 4G2-464, describes this bird under the name of Falco 

 percontator, or Calling Falcon, from its loud calling note, said to 

 be louder and more frequently uttered just before a storm. 1 It is 

 also described as having the boldness and dash of a falcon or true 

 hawk (Nisus), one of them having swooped at a boat-bill which he 

 killed while flying across a stream, while another was observed to 

 chase a dove while on the wing. 



1 Dr. Cabot says the Indians believe that this is "because its bones ache." 



