The Defender® Chimney Pot Spike has been designed to stop seagulls and pigeons from being able to land or roost on any shape open chimney pot. Other than noise and unpleasant mess, if birds make nests on chimneys it can become a real fire hazard if the chimney is in use. This seagull and pigeon deterrent is a very easy and quick way to keep birds off and out of your chimney. The stainless steel strap is flexible so will fit round or square chimney pot. If it is a capped chimney this product cannot be used. Installation is easy and the design of this bird deterrent allows a chimney sweep's brush to thrust straight through the spikes, this means that the chimney spike does not need to be removed each time the chimney is swept. The brush simply pushes past and retracts easily.
eBay