Dive-bombing magpies can be a distinctly uncomfortable experience, particularly during the spring breeding season when the birds are especially protective of their habitat.

Because of their intrusive presence and behaviour, magpies are classed as a threat to the public in spring - so now's a good time to control these pests if they're in your back yard.

As it's currently magpie breeding season, the black-and-white scourges of the sky can be particularly aggressive. Supplied Photo.

'Having a magpie diving on you during the breeding season, which is anywhere from September to January, can be very traumatic, especially while riding a bike,” says Waikato Regional Council biosecurity officer Chris Monk.

'Every year, the council gets reports of cycling accidents caused by attacks from territorial magpies.”

Under Waikato Regional Council's Regional pest management plan landowners are responsible for controlling magpies nesting on their land.

But council biosecurity staff are happy to provide advice on trapping and management of the birds. People can either buy a trap or build one themselves using plans available on the council's website.

For more information and advice call the Waikato Regional Council's biosecurity team on 0800 800 401 or visit www.waikatoregion.govt.nz