A golden eagle has been spotted by a group of mountain bike enthusiasts on Llanllwni Mountain in Carmarthenshire.
Although Dyfed Powys Police said there were no reports of a missing eagle, the RSPB said it was likely to have escaped.
The giant bird of prey has bells on it feet, said Nikki Channon who was surprised to see the eagle while out on a ride on Tuesday.
"No doubt someone is very anxious to have lost this bird," she said.
She was taking guests at her mountain biking business on a guided rise when they saw what she described as the tame bird.
"It is obviously tame and lost but could cause damage or take local lambs if it gets very hungry."