A birdnapper broke into a bald eagle’s enclosure at a Long Island wildlife refuge and stole the bird, police said Tuesday.

Workers at the Quogue Wildlife Refugee called police early Tuesday morning when they realized the bird, who is nicknamed Sammy by staff and visitors, was missing from its enclosure, authorities said.

Police who responded to the scene determined the wildlife thief cut into the enclosure and pulled back fencing to grab the bird, Quogue Police said in a press release.

The thief — who has not been identified and is still at large — then ran off with the eagle, cops said.

The 35-year-old eagle was brought to the sanctuary in 1988 by officials from the Fish and Wildlife Service after being injured in the Western US, police said.

The eagle has a partially amputated wing.

Possession of a bald eagle, which is a federally protected species, is illegal and punishable by fines and jail time, police said.