HOOPER, 



101 



is the head of the adult Hooper. The anterior part of the 

 beak is depressed and black ; the posterior or basal part 



quadrangular and yellow : this latter colour extending con- 

 siderably forward along each lateral margin of the upper 

 mandible, beyond the openings of the nostrils, which are 

 black ; the lore, or bare space between the base of the upper 

 mandible and the eye, is also yellow ; the irides dark ; the 

 head, neck, and the whole of the plumage of the body and 

 wings in adult birds, pure white ; some specimens, occasion- 

 ally only, exhibiting a rufous or ochreous tint at the tips of 

 the feathers on the head ; the legs, toes, and their membranes 

 black. 



The whole length from the point of the beak to the end 

 of the tail five feet. From the carpal joint of the wing to 

 the end of the longest primary quill- feather, twenty-five inches 

 and a half; weight twenty- four pounds. 



