The Barn Owl is the best-studied of the
five British owl species and much effort has gone into providing
both breeding sites and better habitat in which to hunt for
mice and voles. Thanks to
BTO
research, we even have a reliable estimate of the number
of breeding pairs (there are about 4,000). Sitting at the
top of the farmland food-chain, the Barn Owl should be an
ideal species to act as an indicator of the success of new
agricultural subsidy schemes? Unfortunately not! The Barn
Owl was originally part of the Farmland Bird Index, used by
the Government, but we did not have enough information for
its continued inclusion in the index.