6499:Carried out survey of birds on our farm (situated in the south east) this year found 68 species including peregrine falcon, buzzard, yellow hammer.and yellow wagtail .We put this down to having all crops harvested in august and light trimming hedges on a regular basis avoiding the nesting season, this allows dense growth and encourager's safe nesting sights unlike some neighbours who slaughter hedges every three years.
That's excellent! I do sometimes feel that those who criticise agriculture for decimating bird numbers don't actually look that hard, I always see plenty round here. Like you, I have noticed that regular light cutting seems to make for a much more solid hedge which is attractive to many smaller hedge dwelling birds, and is also more difficult for the likes of sparrowhawks (and the abundance of magpies we have around here) to get into to steal the eggs and young.
I have never liked the 'leave it three years and then batter it into submission' approach which is constantly pushed at us - the only birds that seem to thrive in these thin bushes are pigeons!