This CCTV footage shows a thief forcing his way into John Brennan's aviary at night. He holds a torch in his mouth.
For fifteen minutes, he grabs at birds with a net, stuffing them into his pockets. At one point passing close to the camera.
Mr Brennan says he's shocked and devastated.
His garden is surrounded by high fences and barbed wire, but he's now considering what more security measures he can take.
More top news
A man convicted of preparing to commit acts of terror has today pleaded guilty to possessing a hand-written bomb making recipe in prison.
A man who punctured his dog’s heart after stabbing him twice in the chest, then dumping the body in a wheelie bin, has been jailed.
Divers have spent two days searching the lake at Delapre Abbey and the articles found will now undergo forensic assessment.