Why Do Birds Have Different Types Of Beaks?

Birds have different types of beaks due to evolution, which has ensured that birds have beaks which are best suited to getting the food that they need.
For example, the saddlebill bird has a very long, sharp beak which is red, yellow and black.  It stabs water animals, so this type of beak is required.
Eagles and other birds of prey tear flesh using both their beak and their talons or claws and so they have very sharp beaks.  Waxwings on the other hand eat berries, so their beaks are more adapted to clasping tiny berries.  
A bird has no teeth, so its beak is very important to assist with feeding.  However, a lot of the 'chewing' is actually done within the second part of the bird's stomach, which is commonly known as the 'gizzard'. Some birds actually swallow small pebbles or grit to assist the gizzard in breaking down the food.  

Each bird has a beak appropriate for it's lifestyle like the cuved beak of parrots used for crushing nuts, a storks arrow beak for grabbing fish and small creatures and an eagles hooked beak for tearing flesh

Each of the birds has its very own beak cause its lifestyle

Birds  have  different  types  of  beaks  to make their  homes

Because they eat different things