The Cayman Islands has said it would begin culling its feral cat population in an effort to safeguard a threatened brown booby bird colony. The eastern portion of Cayman Brac island, where just 13 brown booby fledglings out of 42 eggs survived last year, will be the location of the culling, according to the department of environment for the islands.

Officials said on Tuesday that they will begin a humane catch and killing campaign to assist safeguard the current nesting season. Any microchipped cats caught in the traps, according to their statement, will be returned to their owners.

Breeding brown boobies only construct ground nests in the Caribbean Sea and Gulf of Mexico. They are not regarded as an endangered species anywhere in the globe.