Beaks
Bird beaks are multifunctional and can be used for feeding, grooming, building and fighting.  The beak is also an indication of the type of food the bird consumes.

Here are some examples:
Chickens ...............................................................................

Ducks ....................................................................................
Finches .................................................................................
Herons ..................................................................................
Hummingbirds   .................................................................

​Toucans and Hornbills ....................................................
Strong, short and pointed beaks to pick food from the ground
Fringed to strain out mud and water from their food
Conical beaks to crack open seeds
Long and sharp in order to spear the fish from the water
Long needle-like beak for gathering nectar within a flower
Large and swollen beaks to use with soft, pulpy fruit
Picture
CHICKEN
Picture
EGRET
Picture
TOUCAN
Picture
PELICAN
Picture
HUMMINGBIRD
Picture
FLAMINGO
http://en.wikipedia.org/wiki/File:BirdBeaksA.svg