A Doydoy Nest is a craftable Survival Tab Structure introduced in the Shipwrecked DLC. It requires 8 Twigs, 2 Doydoy Feathers and 4 Manure to craft, and an Alchemy Engine to prototype. It also spawns when two Doydoys mate. Once created, the egg inside the nest will hatch into a Baby Doydoy after 2 days.
The Doydoy Egg can be harvested from the nest. Unlike Tallbirds, Doydoys do not chase the player if the egg is taken. Empty Doydoy nests are ignored by Doydoys, and no new egg will spawn in them automatically. However, players can place a Doydoy Egg in an empty Nest, which will hatch after 2 days. This allows restoring Doydoy population with a stash of at least 4 Doydoy Feathers and 2 Doydoy Eggs, even if all the Doydoys are dead.