BIRDS’ BEAKS. 
According to the nature of the food supply and the difficulties of obtaining it, so the beak of the bird is adapted to overcome the difficulties and capture the prey. The beaks 
here shown are those of the Spoonbill and Heron, and underneath of the Avocet—all these three are fish-catchers. The last is the female Huia bird, who uses her beak as forceps to 
catch insects. 
