Discussion and Debate
Reports of the discussion about the Langholm Project at the GWCT’s North of England Grouse Seminar have been publically circulated and personal interpretations have been made by the reporter.
The board notes that Sonja Ludwig’s presentation and conclusions reflect the accepted position of the partners and STAG. This position was clearly and jointly expressed in the recent seven-year review on sustainably harvestable grouse densities and raptor predation interpretation.
State of the UK's Birds 2015 report
The 2015 State of the UK's Birds report has been published. It notes the success at Langholm in hen harrier and black grouse conservation, which have both shown large gains on the moor, and cites the work of the gamekeeping team and efforts to reduce the grazing impacts on heather moorland as leading reasons for this good news.
Langholm-reared hen harrier found dead
A female hen harrier raised on Langholm Moor and which was known as Annie has been found dead. The harrier was satellite tagged on Langholm in June of last year, by Natural England, a partner in the Langholm Project. Since the loss of a consistent tag signal in mid-March 2015, the search, led by Police Scotland, has focused on an area over 40km to the north west of Langholm Moor. We are disappointed to learn that the bird appears to have been shot and we offer what help we can to the investigation. This is especially disappointing news as the project has had so much success over the last eight years, fledging over 100 hen harriers from Langholm.
The year that summer forgot appears to have taken its toll on Langholm’s harriers as well as other wildlife this year. In contrast to the 12 nesting female harriers in 2014, in 2015, eight female hen harriers nested on Langholm Moor. Two females failed, one before laying and the other one during incubation, probably due to the bad weather. The remaining six females (of which one had a replacement clutch after the failure of the first clutch), all of which were diversionary fed, fledged a total of 17 young (broods sizes between 1 and 5), which were all fitted with BTO and colour rings. One male chick was additionally fitted with a satellite tag, its progress can be followed as usual here.
Seasonal update – black grouse and harrier news
Many birds seemed to have been delayed by the recent spell of cold and wet weather, but the first harrier chicks have also hatched in the last week. There are currently five active nests but we’re expecting more to come. Neither did the dreich slow start to the year dissuade the black grouse from lekking. During the April and May counts, we saw an increase from 18 males on leks in 2014 to 29 males in 2015.
Which is more attractive: the chick or the egg?
MSc student Kathryn Fingland, who studied red grouse nesting success at Langholm in 2014, has published her observations on a red grouse clutch desertion. Reproduced here with permission of British Birds. Read more.
Spring 2015 red grouse counts complete
Read more here.
Hen harriers, buzzards and 2015 research
An update on harrier wintering and tagging, buzzard research and the summer 2015 fieldwork programme at Langholm Moor. Further information can be found on the news page.
Black grouse on the increase
Black grouse are increasing at Langholm in number but more importantly in range. Black grouse are regularly seen on areas that have treated with glyphosate, chopped and re-seeded with heather. One of these areas has a power line running through it, which has sadly resulted in the death of two greyhens and two black cock from hitting the power lines. The good news is that Sottish Power have fitted reflectors along the worst stretch of cable and the black grouse are still present. We’d like to thank Scottish Power for their help with this.
Fewer red grouse this spring on Langholm Moor
According to the project’s science team the number of red grouse on the Langholm Moor Demonstration Project site is less than at this time last year, despite best practice moorland management and typical weather between summer 2014 and spring 2015 (Figure 1).
Figure 1: Mean densities of red grouse at Langholm in spring and July
derived from distance sampling. Error bars represent 95% CI.
The spring weather allowed the project scientist Dr Sonja Ludwig and her pointing dog to complete these counts of the red grouse in three weeks this year. The counts were on the same areas as have been checked since the start of the project and involve walking across 68 km of the moor. The counts suggest there are between 60 and 73 grouse per 100ha of moor in spring 2015. This number is significantly less than spring 2014 (75-96 per 100ha).
The control of crows, foxes and parasites, improvement in habitat and a summer of good weather in 2014 suggested the numbers of grouse surviving to spring 2015 could have been at least as good as the previous year. But overwinter losses of 46% left fewer birds compared to spring 2014. As in past years, many of these losses are associated with raptor predation; 13 of 16 radio-tagged grouse found dead overwinter appear to have been taken by birds of prey.
These grouse population figures reflect and confirm the findings of the project that were described in the 7-year review (here). They reinforce the position of the project board that it has to consider what actions are necessary for the project to achieve economically viable driven red grouse shooting, a key incentive in continuing to deliver successful habitat and raptor conservation on the moor.
Hen harriers wintering with us on the moor
Last summer’s 10 nesting hen harriers produced 47 chicks, the highest level of nesting and chick production since the project began in 2008. We also have another record in that at least 10 birds are wintering on the moor, more than any winter to date. We are gearing up for the coming breeding season and keen to see how many birds nest with us in 2015.
LMDP’s buzzard study on schedule to finish on time
Our three-year PhD study on the feeding ecology of buzzards on Langholm Moor is on schedule to complete by May 2014. By then we hope the PhD thesis, written by Richard Francksen and supervised by Dr Mark Whittingham at Newcastle University and Dr David Baines of the GWCT, will be submitted and successfully defended. If this is achieved the PhD will have been completed in just over three years, a considerable success. Up to five scientific papers are planned from the work to be written up in the remainder of 2015.
Summer 2015 fieldwork programme approved
The Project’s internal scientific steering committee, the Science Contact Group (SCG) met in January to discuss and approve the summer 2015 fieldwork programme. This included:
- Red grouse nesting success, using radio-tagged hens and nest cameras.
- Red grouse chick survival, using radio telemetry on chicks.
- Identification of diet of peregrines and goshawks, using nest cameras, and the examination of pellets and prey remains.
- Who else is eating the diversionary feed being supplied to hen harriers, using cameras at feeding posts?
This is on top of all the usual monitoring programmes that survey red grouse, vegetation, waders, small birds, voles and all other raptors.
The large reliance on cameras and radios does have budget implications so these plans for now are subject to Board approval.
Our four satellite-tagged hen harriers – an update
As of mid-January, two of our hen harrier chicks fitted with satellite tags in 2013 (which have both bred in 2014) are still with us on Langholm Moor; the third is in the Republic of Ireland. A fourth bird tagged in 2014 is still active near Moffat.
Black grouse on the increase
Black grouse are increasing at Langholm in number but more importantly in range. Black grouse are regularly seen on areas that have treated with glyphosate, chopped and re-seeded with heather. One of these areas has a power line running through it, which has sadly resulted in the death of two greyhens and two black cock from hitting the power lines. The good news is that Scottish Power have fitted reflectors along the worst stretch of cable and the black grouse are still present. We’d like to thank Scottish Power for their help with this.
Seven Year Project Review launched
The LMDP Directors have today launched the next staged review of project progress. Originally intended to summarise data to 2013, the report was produced allowing 2014 data to be included.
Mark Oddy, current Chairman of the Project Board, says: “We are delighted to produce our most substantive report on the project yet. The Review shows that the project has met its targets for habitat improvement and the SPA target for harriers, which is good news. However, as yet red grouse populations have not recovered sufficiently to allow any grouse shooting. This means that we have not yet achieved the desired compatibility between the economic driver of red grouse shooting and raptor conservation. All the project partners will be looking at the opportunities there are to address this challenge in an Options Paper due to be published in the New Year.”
The project review can be downloaded here.
Simon Lester tells it like it is in Radio 4 interview
Simon Lester was a key contributor to the half hour programme ‘Hen Harriers: Trust in Conservation’, part of BBC Radio 4’s ‘Shared Planet’ series. You can listen again through the Radio 4 website to this episode about Hen Harriers and wildlife conflict.
2014 Raptor Monitoring Report
The 2014 report on which and how many breeding raptors there were at Langholm this year is available here.
2014 Grouse Shooting Season
There will be no grouse shooting on Langholm Moor this year.
The recommendation of the Head Gamekeeper and the project's Scientific Contact Group is that we should not shoot in order to protect the breeding population of red grouse in 2015.The Directors accept these recommendations and confirm there will be no shooting in this the seventh year of the Project.
The July 2014 grouse abundance derived from distance sampling methods indicated there were an average 127 birds/100ha. The 2014 counts indicate this was a modest breeding season with a 1.9:1.0 young to old ratio.
The project target is to shoot 1000 brace of driven grouse in a season. The project plan estimated that at least 150 birds/100ha would be needed to achieve that goal. The best available evidence suggests that even in the absence of shooting this year, typical overwinter mortality will make progress towards this target very difficult next year.
This is a disappointing result as the spring 2014 grouse counts were encouraging. Even assuming a poor breeding season our spring estimates of possible July densities were better than what was eventually counted. The project is analysing in detail the reasons for the poor grouse performance; habitat, weather conditions and losses to predation are being studied carefully. A complete analysis of the data will be available to Directors in September.
1. Further details on the summer grouse counts can be found here.
2. The project plan identified 1000 brace of driven grouse as a milestone target for shooting. This would not be sufficient to break even, but would demonstrate a recovery path to a position which could be considered financially sustainable.
raven control by Langholm Farms Ltd
SNH have granted a licence to Langholm Farms Ltd for the
limited control of ravens based upon evidence of serious damage to
sheep. The Langholm Farms Ltd operation includes the area occupied by
Langholm Moor Demonstration Project (LMDP). The LMDP has no involvement
the licence granted, nor its operation.
1. Ravens have caused serious damage
to agriculture across
Scotland for many years, notably to new-born lambs and lambing ewes. In
73 raven control licences were issued across Scotland by SNH to reduce
on lambing sheep.
2. In recent years Langholm Farms Ltd
(a subsidiary of
Buccleuch Estates Ltd) sheep have been seriously affected by raven
activity. The licence will allow Langholm Farms Ltd to take
limited number of ravens causing such issues, during the critical
period, as an aid to scaring.
3. Licences such as this are only
issued when SNH and
Scottish Government are satisfied that there are no other satisfactory
Please contact Langholm Estate Office on 01387 247010
Older stories can be found in the News Archive.