Fencing to Protect Hawaiian Petrels from Feral Cats: A Progress Update

A 5.5-mile-long barrier fence is being constructed around the largest known Hawaiian petrel colony within Hawai’i Volcanoes National Park to protect the endangered birds from feral cat predation. The modified design, inspired by an Australian model, features a skirted base and rolled top to deter cats while allowing petrels to navigate it. Since construction began in 2013 at over 9,000 feet elevation, approximately 3,900 posts have been installed along the rugged lava terrain, with additional work seasons anticipated for completion. Ongoing nest monitoring will assess the fence's effectiveness, while interpretive panels educate visitors about the conservation efforts for this elusive species.

Hu, D., Misajon, K., Faford, J., Perry, C. ,. F., Loh, R., & Medeiros, K. (2014). Fencing to Protect Hawaiian Petrels from Feral Cats: A Progress Update. Proceedings of the Vertebrate Pest Conference, 26. https://doi.org/10.5070/v426110347