Earlier this month, Environment Minister Stewart Stevenson MSP visited the Langholm Moor Demonstration Project in the Borders. The Langholm Project is an expensive, ten-year project aimed at demonstrating that hen harriers can co-exist with driven grouse shooting. The project is run as a partnership between SNH, Buccleuch Estates, RSPB, GWCT and Natural England. As part of the project, young hen harriers are being fitted with satellite tags to monitor their dispersal movements away from the moor.
The Environment Minister’s visit to Langholm was well publicised with an SNH press release (see here). In this press release, the Minister is quoted as saying: “…it was fascinating to learn that harriers that have been tagged at Langholm are being satellite tracked as far afield as France and Spain”.
Yes, that is fascinating, but of even greater interest is what has happened to the harriers that stayed behind in the UK?
According to the most recent diary entry on the project’s website (October 2011 – see here) written by the Langholm Project’s head gamekeeper, Simon Lester, one of this year’s young harriers has ‘disappeared’ –
“There is good and bad news as far as our satellite-tagged hen harriers are concerned. The ever-intrepid McPedro is certainly heading to France, across the channel from Devon. The sad news is that the hen that hatched in the nest just behind our house — and that I fed for some 60 days — has disappeared in the Moorfoots, having survived well in a relatively small range. The last ‘fix’ (or GPS position transmitted by its satellite tag) was on a shooting estate that co-operated fully when Project staff and the police tried, unsuccessfully, to recover the missing bird. Unfortunately, this bird’s particular satellite tag does not have a ‘ground track’ facility, so it may well have ended up miles away from the last transmitted ‘fix’, as, contrary to popular belief, birds can travel a vast distance in between transmissions. This latest loss is very sad, not just for the Project and our hope that more hen harriers will return to breed here, but is not helpful in our quest to help resolve the on-going raptor/grouse-shooting debate, either“.
Now, this is a fairly one-sided commentary of what might have happened to this young harrier. What Lester failed to mention was that the sporting estate where the harrier’s last known GPS ‘fix’ came from was an estate in the Scottish Borders with a well-documented history of alleged raptor persecution. This particular estate has been the subject of two police raids in the last few years. Illegal pesticides, poisoned baits and poisoned and shot raptors have all reportedly been retrieved from this estate. Apparently, no prosecutions for alleged raptor persecution crime resulted from either raid.
Lester is quite right to point out that just because the last known GPS ‘fix’ of the harrier was on this estate, this doesn’t necessarily mean that the harrier died there. As he says, the harrier could have moved off the estate before the next satellite signal was due, and could have died elsewhere – although if that had happened, why wasn’t there another ‘fix’ from the new location? The transmitter doesn’t die when the bird dies. For all we know though, the bird may not even be dead. It’s possible that the satellite transmitter failed, by coincidence, when the bird was on this estate, and the harrier has since moved away and is alive and well in an unknown location. But there is another plausible explanation too, and one that Lester conveniently chose not to include in his report. That is, this harrier could have been killed illegally on this particular estate, and its body hidden/buried/burnt before the Langholm Project staff arrived to search for it. It’s worth pointing out here that the Langholm Project policy, when searching for missing birds, is to look at the bird’s last known GPS ‘fix’, identify the landowner, and ask for that landowner’s permission before the project staff go searching for the bird, thus giving advance warning of the search.
Why Lester chose not to include this alternative possible explanation in his report about the disappearance of the harrier is not clear. It would seem that the suspicion of foul play had been considered by the project team, given that a wildlife crime police officer accompanied the team to search for the missing bird on this estate. We will wait with interest for the Langholm Project’s formal 2011 annual report to see what information is provided about this particular disappearing harrier, and about all the other tagged harriers from 2010 and 2011. So far, very limited information has been made available about the fate of the six tagged harriers, with the exception of the famed ‘McPedro’, who wisely took off to Spain in his first summer, returned to the UK this spring, and then took off south again this autumn. Given the amount of public funding that is being ploughed into the Langholm Project, a bit more transparency about the fate of some of the other young harriers wouldn’t go amiss.
Langholm Moor Demonstration Project website here
In the November 2011 edition of Birdwatch magazine, Mark Avery calls for our views about hen harriers and grouse moors. He says that if we send our views to the Birdwatch editor, they’ll be summarised and sent to a range of organisations including the Moorland Association, the Game and Wildlife Conservation Trust, the RSPB and the Scottish Raptor Study Groups.
If you look closely at the graph, you will see a great deal of variation between years in the number of confirmed poisoning incidents. Of particular interest are the years 1994 and 1995 – in these two years, confirmed poisoning incidents dropped to a low of 15 from a previous high of 35+. However, if you then look at the following three years, the number of confirmed incidents steadily rose until they reached 35+ again. In 1999, the figure dropped again to 15, and from then until 2010, that figure has steadily risen and fallen, although never reaching the low of 15 again. So what does that tell us? I’m fairly sure that in the years 1994 and 1995, the game shooting lobby would have declared a ‘victory’ as the figures had dropped so much, and would have shouted from the hilltops that they’d changed their ways. I’m also fairly sure that in the following three years when the figures rose again, the conservationists would have declared a ‘victory’ and pronounced that their claims of widespread persecution had been vindicated. Either way, it is clear that neither ‘side’ can draw conclusions just based on an annual figure; for a trend to be detected, we need to see long-term figures.
You need to be a subscriber to the journal Biological Conservation to access the full paper (or alternatively you can buy it [see link at foot of this post] or you can google the paper’s lead author, Dr Arjun Amar, to see if he’ll send you a free PDF for your own private use), but here is the published abstract:
A report out today in the Independent on Sunday says that birds of prey are being poisoned or shot in the North York Moors and Yorkshire Dales at a rate unknown in any other region in the UK, according to the latest RSPB figures.
The latest figures come from the RSPB’s annual Birdcrime report, Birdcrime 2010, which is due to be published on Thursday, so it’s difficult to assess the findings until the report has been released. However, according to the IoS article, “Almost 10 per cent of the 117 incidents against 11 species last year took place in the county, which has consistently recorded high rates of such crime, according to the RSPB“.
A recent study that revealed how illegal persecution is affecting the growth of a red kite population in Scotland has won a scientific research award.
Yesterday we commented on an article being run on the BBC News website that was reporting on the shooting of goshawk chicks in the Borders (
The RSPB has launched a new fundraising campaign called ‘Save Birds of Prey’. It’s aimed at children and is encouraging them to help raise money to buy kit for ‘bird of prey detectives’.