Facebook: FarmVille (PC)
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Rare animals
Accept rare animals quickly when they appear or when given to you. They can appear under the following conditions.
Animal
Condition
Black sheep
Black wool.
Brown cow
Chocolate milk.
Ugly duckling
Transformed swan.
Swan
Swan feathers.
Baby elephant
Circus peanuts.
Duck
Down feathers.
Rabbit
Some kind of wool.