- Main article: Horse Paddock
The 4th Birthday Unicorn can be stored in the Horse Paddock. The Horse Paddock can be harvested every 1 day. When harvesting the Horse Paddock containing at least one 4th Birthday Unicorn, in addition to currency, it is possible to find the 4th Birthday Unicorn Foal or Animal Feed.
- Main article: Unicorn Island
The 4th Birthday Unicorn can be stored in the Unicorn Island. The Unicorn Island can be harvested every 12 hours. When harvesting the Unicorn Island containing at least one 4th Birthday Unicorn, it is possible to find 2 Purple Amethysts. One Purple Amethyst is for the farmer, and is sent to the farmer's Unicorn Island. The other Purple Amethyst is for the farmer's friends, and can be shared to the player's wall.
- Main article: Horse Stable
The 4th Birthday Unicorn can be stored in the Horse Stable. A Horse Stable can be harvested once every day. When harvesting a Horse Stable containing at least one 4th Birthday Unicorn, players have a chance to find one 4th Birthday Unicorn Foal*, Arborist, Farmhand, or 100 experience. Farmhands, Arborists, and experience go directly to the player's gift box. However, the 4th Birthday Unicorn Foal may only be shared to the player's wall, where it may be adopted by the player's friends.
- Zynga considers the 4th Birthday Unicorn a horse. Horses require the presence of at least 1 (one) stallion in the Horse Stable in order to produce a foal.
- Main article: Mastery
|Mastery Level||Mastery Points|