A free-roaming cat named Booker T took National Geographic to his favorite underground hide-out in a storm sewer of Athens-Clarke County. “Now I know what the storm sewer looks like. It’s kind of frightening,” said owner Amy Watts. “I wish he would never go down there again.”

Exploring storm drain systems is only one of the few risk factors free-roaming cats experience, according to a study conducted by National Geographic in collaboration with the University of Georgia. Researchers measured, “cat predation on wildlife,” and quantified common factors that threaten the health of free-roaming cats.

All of this was possible through the use of Kitty Cams, which are lightweight, waterproof units that record HQ video and are attached to a breakaway collar. 60 Athens cats wore these camera while they galavanted outdoors for 7-10 days.

The most prevalent dangers the cats encountered involved crossing the street, interacting with unknown cats, consuming substances, exploring storm drain systems and entering crawlspaces where they could potentially become trapped.

4 out of the 60 cats were also caught seeking out attention or food from other households. “Archie got a whole other family,” Watts said. “I feel like one of those women on the talk shows: ‘My husband has two wives.’ My cat has two families.”