The Horticultural Development Company's (HDC) study showed that horticultural cropping is likely to provide high-quality habitats for a range of species including the grey partridge, jackdaw, lapwing, skylark, stock dove, tree sparrow
, yellow wagtail and yellowhammer.
Although nationally, the tree sparrow
is in decline, due to the sparsity of its natural habitat, the lucky ones visiting the patch of land tended to by Mike have continued to thrive.
Defra said the long-term decline was mainly due to falling numbers among species that depend on farmland habitats - known as the 'specialists', such as grey partridge, turtle dove, starling, tree sparrow
and corn bunting which have all fallen by more than 70%.
Numbers of farmland birds like the tree sparrow
and yellowhammer have dropped significantly, while willow tit, marsh tit and some of the Welsh woodland specialities like pied flycatcher and wood warbler are becoming increasingly difficult to find.
The RSPB and Severn Trent Water have joined forces to launch the initiative to save the tree sparrow
, numbers of which have plummeted by 90 per cent since 1970.
The tree sparrow
population is down by 94% since 1970, corn buntings by 90% and yellowhammers by 54%.
The idea is to promote management of arable habitats to benefit wildlife and rare plant species such as weasel's-snout and birds such as grey partridge, tree sparrow
and yellowhammer Wales has become a landscape of predominately grassland farming, while arable farming and mixed farming has decreased following a push over many decades to make farming more productive.
Priority will now be given to farmers with any of seven threatened farmland birds on their land - corn bunting, tree sparrow
, lapwing, grey partridge, turtle dove, cirl bunting and stone curlew.
In the last 30 years the populations of common birds such as the skylark, song thrush, grey partridge and tree sparrow
have declined by more than half.
The improved habitats will help scarce species like the dormouse, bat, tree sparrow
and brown hairstreak butterfly.
Farmers are set to help in the battle to prevent the extinction of birds including the tree sparrow
and corn bunting.
In the North East, goldfinch and tree sparrow
populations rocketed by more than 50%.