After the alarming discovery, the 40-year-old who lives in Kenelm Road got in touch with Ray Dedicoat who runs Hollytrees Animal Rescue Trust in Hollywood.
Mr Dedicoat said: "It was 40 degrees when they left The Gambia so we've got him on a heated pad.
"We're hoping someone will be able to offer us some advice but there's no way I'd hand him over to be put down."