1. Eagle
1.1. What kind of beak does the eagle have?
1.1.1. Like all birds of prey, eagles have very large hooked beaks. The beak is typically heavier than most other birds of prey.
1.2. How is the beak useful to the eagle?
1.2.1. The eagle uses its beak to tear the flesh from its prey
2. Sparrow
2.1. What kind of beak does the sparrow have?
2.1.1. A sparrow has a short hard & horny beak that is blunt yet powerful beaks.
2.2. How is the beak useful to the sparrow?
2.2.1. This is used for eating, digging insects, and cracking seeds
3. Woodpecker
3.1. What kind of beak does the woodpecker have?
3.1.1. They have strong bills. Woodpecker bills are typically longer, sharper and stronger than the bills of piculets and wrynecks; however their morphology is very similar. The bill's chisel-like tip is kept sharp by the pecking action in birds that regularly use it on wood. Species of woodpecker and flicker that use their bills in soil or for probing as opposed to regular hammering tend to have longer and more decurved bills.
3.2. How is the beak useful to the woodpecker?
3.2.1. It is for drilling and drumming on trees.
4. Pelican
4.1. What kind of beak does the pelican have?
4.1.1. Pelicans are a genus of large water birds comprising the family Pelecanidae. They are characterised by a long beak.
4.2. How is the beak useful to the pelican?
4.2.1. The beak has a large throat pouch used in catching prey and draining water from the scooped up contents before swallowing