The truth is that raptors have been recuperating in the UK since a very low point reached after two centuries of persecution. Some species were wiped out.
In an article published in the Guardian on November 7th, the RSPB (Royal Society for the Protection of Birds) is quoted saying that since 1980, across 25 European countries, house sparrow numbers have declined by 147 million, a 62% drop to 90 million. According to the same report, starlings have fallen by 45 million, down to 40 million. As for Skylarks, their population went down by 37 million, to 43 million today. Says the author of the article, “It’s principally agricultural intensification that is behind the crisis.” (1)