THERE'S something in the Bowland air, a population explosion among a relative of the robin. It's a success story in the making -- a bird which has seen a mini population explosion in one area of Lancashire.

If you are exploring the Trough of Bowland, look out for the stonechat, a bird which has gone from strength to strength in the area during recent years.

A repetitive "chak-chak" call, like two stones being hit together, may first bring the stonechat to your attention. Then you will notice the bird sitting upright and alert, cursing you from a nearby perch.

In 1998 there were only three pairs of stonechats breeding on the United Utilities estate in Bowland. In just five years, this has increased to an incredible 39, a phenomenon which could be related to it being one of the few small bird species that stays in Bowland throughout the winter.

It's a risky strategy because during a cold winter these birds can be almost wiped out. If they do survive to the spring, they will be first in line for the best territories and get the opportunity to have a longer breeding season, potentially rearing up to three broods of young.

What to look for:

Stonechats, which are related to robins, like open country with scattered bushes, particularly gorse.

The male has a dark head with a prominent white collar. His chest is a rich robin-like red.

The female has a paler head and a more orange chest. Both sexes perch prominently and flick their wings in an agitated fashion.

If you are interested in finding out more about wildlife, why not join the RSPB for one of these events.

Sunday November 23, 3-4.30pm: Spectacular starlings at Leighton Moss RSPB reserve near Carnforth. Watch thousands of starlings come to roost in the reedbed. £4.50 adult non members, children £2. Tel 01524 701601 for details.

Sunday November 23, 9am: Shorebird spectacular at Marshside RSPB reserve near Southport. It's high tide and the best chance to get close views of wading birds. Tel 01704 536378 for further details.

Sunday November 30, 10am-12.30pm: Celebrate National Tree Week with a guided walk around Coombes Valley RSPB reserve near Leek in Staffordshire, looking at the variety of trees and how they are managed for wildlife. Meet at the RSPB visitor centre at Coombes Valley. RSPB members £1, non members £1.50.