The poultry migration fence system includes at least one fence panel attached to at least one side of a U-shaped open archway. At least one selectively pivotal support rail is mounted to the bottom of the fence panel. The archway allows the fence system to be easily installed by sliding the open end of the archway over a suspended feed/water pipe. The pivotal support rail can be pivoted to a support position where the support rail extends orthogonal to the fence panel in order to provide a stable base for maintaining the upright position of the fence panel and pivoted to a storage position parallel to the extension of the fence panel. A swiveling gate is pivotally attached to one of the legs of the archway so that the gap at the open end can be selectively closed, thereby preventing poultry from crossing towards the other side of the fence panel. Both solid and wire fence panels are provided.