Cat Island Light, Lighthouse in Harrison County, Mississippi, US.

Cat Island Light was a lighthouse on Cat Island, a barrier island off Harrison County, Mississippi. The first tower, erected in 1831, was a conical brick structure; it was replaced in 1871 by a square screw-pile lighthouse. Only the iron foundation remains, marked as a hazard on NOAA charts.

The original light station was built in 1831 as a cone-shaped brick structure lacking proper foundation on sand. It was replaced in 1872 with a new design using screw piles, which provided better stability against the water and elements.

Locals called this place The Bird Cage after it stopped working as a navigation aid. The lighthouse evolved from a functional structure into a spot where people come to fish.

Only the iron screw-pile foundation of the 1871 lighthouse remains, standing in the water and marked as a hazard on NOAA nautical charts. Boaters should keep clear of the structure, which is also a local fishing spot known as The Bird Cage. There is no tower, lantern or keeper's house to enter on the island.

The iron screw-pile foundation still stands and is marked as a hazard on NOAA nautical charts. Local anglers fish around it and call the remnant The Bird Cage. The keeper's house on the site burned in 1961, leaving only the ironwork in the water.