Toasted Seeds are made by cooking Seeds over a Campfire, Fire Pit or Star. Unlike their raw counterpart, they restore 1 point of Health and cannot be planted or fed to birds. They also spoil four times faster than uncooked seeds.
In the Reign of Giants, Seeds can be gained by destroying Tumbleweed. This means the player can acquire seeds during Winter. Players can also farm Watermelons by planting them in a Farm or Improved Farm, like all the other crops.
No seeds are 'dropped' by birds in the Winter, but the occasional stale or even spoiled seed left over from Summer may be found, Crows and Snowbirds will still eat the seeds, essentially thinning their numbers.