An aviary is provided having a floor and a first aviary cage including a first outside surface enclosing a first inside area. The aviary further comprises a second aviary cage substantially similar to the first aviary cage and including a second outside surface enclosing a second inside area. The second aviary cage is positioned at a height from the floor greater than a height from the floor at which the first aviary cage is positioned. An aisle extends between the first aviary cage and the second aviary cage. A first perch extends from the first outside surface of the first aviary cage and into the aisle at a first vertical distance from the floor. A second perch extends from the second outside surface of the second aviary cage and into the aisle at a second vertical distance from the floor. The first and second vertical distances from the floor are not equal.
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