Friday, February 13, 2009

Bird Spike

Bird Spike

A bird spike, also known as anti-roosting spikes or roost modification,is a device consisting of long, needle-like rods used for bird control. They can be attached to building ledges, street lighting, and commercial signage to prevent wild or feral birds from perching or roosting. Birds can produce large quantities of unsightly and unhygienic feces,and some birds have very loud calls that can be inconvenient for nearby residents, especially at night. As a result, bird control spikes are used to deter these birds without causing them harm or killing them.

Bird spikes are normally around 1 foot (0.30 m) long,and work by reducing the area available for birds to land on. This forces larger varieties of birds, such as seagulls, pigeons, crows and vultures, to land elsewhere. As the birds do not come into contact with the spikes, the birds go unharmed. As a result,bird spikes are recommended for deterring pigeons from gardens.

Described as "the most effective (type of) stand-alone bird deterrent",bird spikes can be placed along ledges, walls, on top of commercial signage, closed circuit television cameras and in rain gutters, in order to prevent birds from perching on the surfaces. Bird spikes are most common in city centres and coastal areas, where feral birds are more common and more likely to come into conflict with humans.In addition, killing or harming birds without a valid reason is illegal in some areas.

As well as being used to control wild birds, bird spikes see limited use in preventing larger climbing animals such as squirrels, racoons and snakes from crossing an area.

Some bird spikes are electrified, using the same principle as an electric fence to increase effectiveness, and the distress call of the shocked bird can frighten others in the area. However, such devices cause unnecessary harm to birds, and are therefore illegal in some areas, such as the United Kingdom. Sharp-tipped bird spikes are illegal in much of the rest of the world,and are unsuitable for areas which are regularly accessible for humans. As a result, some companies manufacture special blunted spikes for use where sharp spikes are dangerous or illegal. However, the blunt spikes are less effective at deterring birds, and cannot block climbing animals.

Bird Spike

1 comment:

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