Bird

Birds are a species of villager in the.

Villagers
It wasn't mentioned which birds the following are, but this is a list of these villagers:

Other bird-type villagers
Some villagers are a specific type of bird, most notably ducks and penguins. Here is a list:
 * Chicken
 * Duck
 * Eagle
 * Ostrich
 * Penguin

Special Character bird-types
Special characters tend to be a different species from normal villagers. Here is a list of those that are birds:
 * Owl
 * Pelican
 * Pigeon
 * Turkey
 * Seagull