Pigeon is a native to the scientific name is Columba livia as a bird that will live in the rock cliff then branching species into local throughout Asia and Europe. Usually pigeons unlike nesting in the trees because it is a bird species that live in the rock cliff. So it's like to nest on a hard surface such as eaves , window or and cranny in the building of temple, factory. In the past, still not much problem with human due to less amount But in a present day, the population enlargement of it is so fast because Thailand cultural do not consume pigeons, make the extreme growth of pigeon population and has created many problems such as pigeon would like to sleep or nesting under eaves, window frame or behind air conditioner and pigeon dropping will mess up the factory or residential condominiums. it is too worried to many residents The pigeon is also spread infectious diseases to humans and animals such as fungi, influenza and viruses cause of many infectious diseases Repellent  the pigeons will effectiveness when used several methods together for example to cut of bird life cycle by destroy the resident or no feeding to the birds But it often found a limitation to handling this matter since of uncontrol factors such water and food resource in natural condition Acording to all reasons, Bird-Tech comnaby Thailand recognize the importance of this problem. It has developed an anti-pigeon devices at all times by appear in a lots of work.

 

 

         Many people have the problem of interference of pigeons at the home,the factory or temple, then some often used multiple method to repelling birds such use cracker, poisoning. mesh protection or even use scarecrow , serpent deceived still not able to repellent the pigeons away. But day by day it is increasing the population rapidly lead to worry, annoyance to residents. damage into the line of manufacturing. These things are the same occurred to other countries in Europe, Asia and America.At present, the protective equipment often depends on the area made It impossible to say what is the best equipment. For example, home pillar can't install the bird netting due to uninhabitable area, for this case should be use PIN will most suitable. The case of the balcony that birds like to come. It suggest to use the invisible mesh installed.  Some people might wonder why not use some kind of magnetic signal device to fix the problem which can spread out signal for repelling the pigeons. It would be easier and not very complicated.But in fact, these signal cannot repelling pigeons and showed unsatisfactory result. The best way to get rid of pigeons is to cut off life cycle by eliminate food and resident resource.

 

 

 

 

Damage1

Feral Pigeons are responsible for untold millions of dollars of damage each year in urban areas. The uric acid in their feces is highly corrosive. Also, debris from roosting flocks can build up, backing up gutters and drains thus causing damage to roofs and other structures. Extensive damage to air conditioning units and other roof top machinery is commonplace. There are also other economic costs that can be associated from Pigeons taking up residence such as slip and fall liability and projection of an unclean, dirty company image. Besides physical damage, the bacteria, fungal agents and ectoparasites found in Pigeon droppings sometimes represent a health risk. 

Control 2

There are a wide variety of solutions available for handling a Pigeon infestation. The best solution for pigeon problems, is complete exclusion with a 2" mesh Net. Many ledge problems can be solved by using products such as BirdCoil, Birdwire, Bird-pin,Spikes, as well as Bird-Shock Flex-Track electrical track. When bird pressure is heavy in an area, exclusion work must be accompanied by flock dispersal methods like trapping or use of moving predator effigies like the Rotating . Flock dispersal alone is not a long term solution especially in medium-heavy pressure situations like when there are food/water/shelter sources at the site.

 

 

 

(1 and 2) This is copy from the article prevention and control of bird .