Requirements:

Place Unhatched Egg from the market
Tend four different hatched eggs.

Yosemite Tree Crate, Smoked Buffalo Ribs, Book of Experience
Notes: Unhatched eggs can be bought in the market. There's a 1 in 4 chance of each bird appearing.
Eggs are hatched using Incubation Blankets which are made from 2 Soft Down Feathers (Geese) and Cloth Comforters (Wall Post)