Abstract: An automatic animal door having a door for closing off an entrance and a controls unit, the door having a vertical axis, a top, and a bottom, comprises means for rotating the door about a vertical axis. It is desired that the automatic animal door of the present invention rotates the door at preset times as follows: door opening at sunrise, door closing at sunset, door opening a short time thereafter, and door closing a final time in a 24 hour cycle a short time thereafter. A method of controlling the containment of birds using an automatic animal door, the automatic animal door having a door for closing off an entrance and a controls unit, comprises the step of automatically rotating the door about a vertical axis, preferably multiple times in a 24 hour period.