(8 years, 1 month ago)
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It is a pleasure to serve under your chairmanship, Mr Nuttall. I am pleased to contribute to this debate because the area of Wales that my hon. Friend the Member for Newbury (Richard Benyon) spoke about, the Berwyn range, is well known to me. It is worth remembering that that range, which covers a huge area and is internationally protected because of its significant numbers of hen harriers, has been managed by the RSPB. The peer-reviewed findings of the study between 1983 and 2002 are therefore incredibly important. If the decline is down to grouse moor management, why are we not seeing an explosion of hen harrier and grouse numbers on the more than 312,000 acres of land managed by the RSPB? That is peer-reviewed scientific evidence. The hon. Member for Bristol East (Kerry McCarthy) failed to say what sources she is relying on or, indeed, whether those sources are peer-reviewed.
Between 1983 and 2002, lapwing were lost from the Berwyn survey area, golden plover declined from 10 birds to one and curlew declined by 79% despite its conservation designations. Carrion crow numbers increased sixfold and raven numbers fourfold, with the number of 1 sq km grid squares that they occupied doubling and trebling respectively. Buzzard numbers increased twofold, and the number of occupied grid squares increased fourfold. Peregrine numbers increased sevenfold, whereas hen harrier numbers declined by half. No significant changes were detected in the abundance of other SPA-designated raptors, merlin and kite.
I appreciate the hon. Lady’s point, but the latest report of the Peak District raptor monitoring group is absolutely clear. The group is frustrated by the heavy focus on hen harriers—I say that as a hen harrier champion—because, despite its best efforts over nearly eight years, merlin and peregrine numbers are going down. A range of significant birds are going down in number.
I would be grateful if the hon. Lady provided me with a peer-reviewed study showing those numbers.
There has been no grouse shooting and no grouse moor management in the Berwyn range, where the number changes have been happening, since the late 1990s. Between upland breeding surveys, red grouse numbers declined by 54% and the occupied range—in other words, where the birds were—fell by 38%. Grouse count data collected on four moors since 1995 show that grouse numbers have remained at low levels on three of the moors. The study is important because it covers an RSPB-managed reserve. Grouse numbers declined, and so did hen harrier numbers.
Contrast that with what happened in relation to the plastic carrier bag charge in Wales, where landowners and the RSPB worked together to protect the black grouse, which was a huge success. There was a big increase in black grouse numbers on one keepered moor; on the three other RSPB moors, black grouse numbers did not increase. On the keepered moor on the Wynnstay Hall estate at Ruabon, the number of black grouse, one of our rarest grouse, increased. That shows what partnership can do, but it also shows that, when the land is not being managed by keepers, or is not where driven shooting happens, there is a decline in biodiversity. The RSPB reserve saw minor increases in black grouse.
This House has a responsibility to judge on proper evidence, not some scientific allegations made by third parties. [Interruption.] I am quoting the scientific facts from peer-reviewed research. I find it difficult that very few RSPB reserves release their data. They do not allow peer-reviewing of their bird numbers. One need only drive down the Llangollen valley to see the bracken on the hills of the RSPB reserves.