Oral Answer by Ministry of National Development on control of wild bird population in HDB estates

Jan 10, 2018

Mr Gan Thiam Poh: To ask the Minister for National Development 

(a) what have been done to control the population of wild birds in HDB estates and the possible transmission of diseases by birds; and

(b) whether methods used by airports such as a sonic system to chase away the birds can be used to prevent the birds from over-growing in HDB estates.

Answer:

AVA adopts a multi-pronged approach to control the population of wild birds like crows, mynahs and pigeons in HDB estates.  First, AVA works with Town Councils to implement measures to mitigate issues caused by birds.  This includes using bird deterrent gels and fogging trees to discourage birds from roosting near residential areas.  Second, AVA also works with NEA and Town Councils to ensure proper disposal of food waste at hawker centres and within residential estates.  This reduces the availability of food that will attract the birds.  Third, AVA works with NParks and Town Councils to prune trees within the estates to deter birds from roosting in them.

AVA conducts regular surveillance of wild birds to detect diseases.  Thus far, there has been no detection of diseases of concern in common bird species.  AVA also inspects pet shops that sell birds to the general public, to ensure that the birds are properly looked after and in good health.  Moreover, our local poultry farms are required to put in place proper biosecurity measures to prevent disease incursion.  Members of the public are advised to exercise due care and caution, and not to handle dead birds or have direct contact with bird droppings because these are where diseases can be transmitted.

AVA has considered the suggestion to use sonic systems to deter birds.  However, the effects are usually temporary and birds have been known to acclimatize to the sound.  Such sonic systems can also be quite loud which reduces their suitability for deployment in dense residential areas.

The public also has an important role to play in curbing the bird population by maintaining the overall cleanliness of the environment and not feeding wild birds.  AVA, NEA and Town Councils will continue to educate residents not to litter or feed the birds.  Enforcement actions will be taken against those who do not comply.