I would recomend that the link -Save Our Songbirds - is read. Make your own decision but to me Its a blatent thinly wraped attempt by the estate at Langholm to keep the grouse numbers up.
Although initially song birds are mentioned, 80% of the Latest News (which is 5 years old) consists of a letter from Brian Mitchell (who has had letters printed in the shooting times) the now part time manager of the hill who blames raptors for the demise of grouse chick survival and therefore relocation of his gamekeepers to other posts on the estates.
He admits that the estate used to cull each year 200 adult foxes 300 carrion crow,
Stoat,
Weasel,
Mink etc. (They seem to be forming their own eco system)
This man also claims that countrywide the Sparrrow Hawk alone takes 4,300 TONS of small birds each year ( how heavy is a blue tit) and the 28 Harriers on his moor kill 111,006 small birds each year, these numbers were provided to him by a by a 'scientist'.
Honestly guys stop hiding behind song bids and be honest.