Besides its effect on bird populations, the snakes also take an economic toll on Guam by causing numerous power outages each year when they cross from tree into electrical lines, the FWS says.

CNN: Deadly mice to rain down on Guam snakes

"I love the feeling of power, the anointing that moves on me when I handle snakes, " he said.

WSJ: Reviving Faith by 'Taking Up Serpents'