Chris Nonnemaker says they noticed two holes in the pool's cover and went outside to take a look Saturday morning in White County.
Then, says Nonnemaker, they noticed something moving.
When he pulled the pool cover back, Nonnemaker saw a buffalo that had escaped from a neighbor's home.
Nonnemaker called police and videotaped the animal's rescue, which involved ropes to help coax it out near the shallow end.
Deputies say the buffalo belonged to a neighbor and escaped with two others weeks ago. They say those two were caught shortly after they got away.
The owners of the buffalo that was in the pool decided to put the animal down.
Watch the buffalo taking a dip: