Hybrid Birds is a mod focusing on adding a variety of new birds to the world of Minecraft, with six new birds currently in the mod (plus babies!)

Currently available birds, and their babies:

Rooster - Chick
Turkey - Poult
Duck - Duckling
Goose - Gosling
Swan - Cygne
Guinea Fowl - Keet
Peacock - Peachick

Most birds have some functionality added to them as well!

Rooster:

Applies a new buff, Roosters Calling, if a player wakes up from a bed within 32 blocks of them, giving slight regeneration and saturation lasting until noon
Scare away ocelots
Can be fed glowberries to turn them aggressive, making them fight any other aggressive roosters for 10 seconds.. do with that what you will

Turkey:

Can be fed wheat to fatten it up to two times, fatter turkeys can drop more meat when killed
Scare away ocelots

Guinea Fowl:

Behave exactly like chickens, but produce up to 4 keets when bred, making them a more efficient source of food

Duck/Goose:

Drop raw duck and raw goose respectively, which can be combined with a raw turkey to create a Turducken

Coming with these new creatures are a bunch of new food items, including cooked eggs, ducks, geese, turkeys, and turducken, which is a placeable food item that can be eaten up to 10 times!