Beak factsBirds quiz
What kind of feeding is crossbill's beak adapted to?
Coniferous-seed eating. Crossbills are characterized by the mandibles crossing at their tips, which gives the group its English name. These mandibles enable them to extract seeds from conifer cones.
What is a bird beak made of?
Keratin. There are two main types of keratin proteins. The e α-keratins are the main structural components of hair, nails, horns and claws of mammals. The harder β-keratins are found the scales and claws of reptiles, tortoise shells, and in the feathers, beaks, claws of birds.
What kind of feeding is avocet's beak adapted to?
Scything is a feeding technique unique to the avocets. These birds forage in shallow brackish water or on mud flats, scything their bills from side to side in water. They mainly eat crustaceans and insects.
What kind of feeding is bullfinch's beak adapted to?
Grain eating. Strong, stubby beaks of finches are adapted for picking and crushing grain seeds. Insect catching birds have typically smaller beaks, as they don't need to crush them with such force.