A falcon trained to keep gulls away from a landfill has not been seen for some time, leading to concern the missing bird may have lost its bearings.
The Saker falcon, named Airington, is one of eight birds of prey that circle the Brady Road Landfill.
Wildlife biologist Emily Craster trained the bird.
She said it is normal for falcons to soar very high on windy days.
"What happens is that on a lovely day, on a nice windy day as well, they go and have fun up in the air and they can get taken away with the wind," she said.
She is concerned the bird may have been carried away and lost his bearings.
"We're actually a bit worried about him," Craster said. "Although he can hunt on his own, he is pretty key to the operation."
The Saker falcon is not much bigger than a crow, and has light, almost white plumage with brown spots.
Airington also has a leather strap, a radio transmitter and a bell.
Anyone who may spot him is asked to call 1-877-OWL-1-OWL.
"He could have gone in any direction," Craster added, noting Airington is very tame and it would not surprise her if he turned up in someone's back yard.
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