Regular blog readers will know we’ve been following the story of the two Langholm hen harrier chicks since the summer: the female chick, ‘Blae’ was reported dead in early September and her sibling, ‘Barry’ was reported ‘missing’ just a couple of weeks later. Since then we’ve been critical of the lack of information that’s been made available to the public (previous blog entries here, here, here, here, here, here, here, here, here, here).
Blae’s probable cause of death has now finally been reported on the Making the Most of Moorlands Project website (see here: a blog written by Cat Barlow, the education project officer at MMMP). Before we discuss the probable cause of death, it’s worth recognising that Cat Barlow deserves a good deal of credit for reporting anything at all to do with these two tagged hen harriers. We understand that some of the Langholm Moor Demonstration Project partners were not, how shall we say, enthusiastic about the prospect of tagging more harrier chicks this year. Why not? Well probably because they know very well what happens to the majority of the dispersing birds and this doesn’t exactly cover the grouse shooting industry in glory. We believe that Cat Barlow, representing MMMP and so not directly answerable to the Langholm Moor Demonstration Project, has stuck her neck out by reporting on this year’s birds. It’s noticeable that the official Langholm Moor Demonstration Project website has made no mention of them.
So, here’s Cat’s explanation for what happened to Blae:
“Back in September we posted the news that the young female Hen Harrier from this year’s nest at Langholm had died. The satellite tag data allowed the carcass to be located and recovered. A post-mortem showed no evidence of shot and no visible injuries. The bird was very thin, suggesting starvation as the most likely cause of death. As a precautionary measure the carcass was sent for further tests. We have heard today that the toxicology results were negative for the commonly-abused pesticides. The body was not found on grouse moor and there was no evidence of human persecution. It is very rare to recover a Hen Harrier carcass, the last post regarding Barry’s demise October 10th 2012, describes a more common scenario, no carcass, no tag, no evidence of his cause of death“.
This result is not at all surprising. The fact that the carcass had been recovered was an early indication that persecution was not a factor; usually, as the above statement indicates, illegally persecuted hen harriers simply ‘disappear’ (e.g. they are buried or burned in order to hide any evidence of the crime). And they don’t just ‘disappear’ on any old random bit of land – they ‘disappear’ on land that’s managed for grouse-shooting. Without direct evidence though (e.g. a carcass), it’s all too easy for the harrier-killers to deny that systematic persecution is taking place, even though endless scientific studies have shown that persecution is so widespread that it’s having population-level impacts.
The persecution-deniers will probably make a big song and dance about Blae’s post-mortem and toxicology results. They’ll probably claim that they are vindicated and the reports of widespread hen harrier persecution are simply propaganda aimed at discrediting the grouse shooting industry. However, if Blae’s premature demise is representative of the majority of young hen harrier deaths, then where are all the other corpses? If they’ve been sat-tagged, surely their carcasses would be retrievable? Sure, young hen harriers, like the young of many species, suffer high natural mortality rates in their first year. That’s what makes the illegal persecution of these birds so damaging – the population loses extra birds in addition to the natural high losses and the population cannot be sustained with these additional losses (read the Hen Harrier Conservation Framework [here] for a more detailed explanation).
We understand that Barry’s last satellite signal came from a grouse moor in the north of England. Predictably, his body has not been recovered and the grouse moor has not been named.
Well done Cat Barlow for making Blae’s results available. Perhaps the Langholm Project partners will feel inspired and reveal information about all the other lost hen harriers, and not just the ones who’ve died of natural causes.
SNH held their Species Framework conference in Edinburgh last week and this included a presentation on the Langholm hen harriers. During the conference, @SNHMedia put out the following tweet:
“Hen harriers faring alot better in Scotland than in England – 550 pairs in the latest national survey“.
What an astonishing piece of spin! Of course hen harriers are faring better in Scotland than in England – with only one breeding pair of hen harriers in England this year, it’s not that difficult! What @SNHMedia failed to mention was that the Scottish hen harrier population is also in continuing decline and the reason for that, according to the Hen Harrier Conservation Framework report that they commissioned, is illegal persecution!
In other satellite tag news….did anyone see the news yesterday where an appeal went out to the public to help find a lost basking shark tag? Guess who put out the appeal? Northern Constabulary! Not only did the appeal feature on the BBC news website (here), but also on Northern Constabulary’s own website (here). This seems a bit strange, given that the loss of the basking shark tag was not related to a criminal offence, whereas all those ‘missing’ satellite-tagged golden eagles, whose disappearance is more than likely related to a criminal offence, don’t get so much as a mention…..