Statement from the RSPB (4 September 2025)
ANOTHER RECORD YEAR FOR HEN HARRIERS IN THE FOREST OF BOWLAND
Hen Harriers are one of the most charismatic yet also most threatened bird species nesting in our uplands. The Forest of Bowland has long served as their most important breeding stronghold in England thanks to collaborative conservation efforts centred on the United Utilities Bowland Estate, where the RSPB is working in partnership with United Utilities and their tenants to monitor and protect these amazing birds.
During the 2025 breeding season, RSPB staff and volunteers recorded 14 Hen Harrier nests on the United Utilities Estate, of which 12 were successful and fledged an outstanding 40 young. This represents the highest number of fledglings recorded in over 40 years.

However, as reported last month there was also a disappointing setback in the form of two adult males disappearing from neighbouring nests within a few days of each other, something not seen on the United Utilities Estate in years.
At one affected nest, the chicks had already begun hatching and, with the help of some supplementary food provided by RSPB staff under licence from Natural England, the female was able to fledge two chicks on her own. At the other nest, the female was still incubating and deserted her clutch after the male disappeared.
One additional nest failed as the female was not provisioned sufficiently by her polygamous male and was forced to hunt herself, leaving her young chick unattended and exposed to the elements. Male Hen Harriers often mate with more than one female (known as polygamy), however, when prey availability is low, they may struggle to provide sufficient food for both broods.
Overall, it was a very good breeding season for Hen Harriers in Bowland. Together with an additional nest recorded by Natural England on a private estate, which fledged 2 chicks, a total of 15 Hen Harrier females bred within the Bowland Fells Special Protection Area (SPA). This meant the SPA again exceeded the threshold of 12 breeding pairs for the second time since 2022.
This sustained recovery over the last eight years reflects highly successful partnership working in Bowland and the commitment of landowners and tenants. However, the species’ overall recovery in England still faces ongoing threats such as illegal persecution, changes in land use and habitat loss.
ENDS
Fantastic work by all those involved – well done.
We still haven’t seen the overall results of the 2025 Hen Harrier breeding season in England but the word on the ground is that it’s been another poor year for Hen Harriers on private estates managed for driven grouse shooting and a good year for those nesting elsewhere. Quelle surprise.
Last year the grouse shooting industry blamed bad weather for the sudden drop in the number of breeding Hen Harriers on private grouse moors, although bad weather didn’t stop Hen Harriers breeding on United Utilities land in Bowland, the RSPB’s Geltsdale Reserve in Cumbria or Forestry England land at Kielder.
Last year there were just five successful nests on privately-owned grouse moors in England and I’m not expecting much to have changed this year. We’ll have to wait for Natural England to publish the 2025 breeding season numbers to find out if this is accurate, and who knows when NE will get its act together to do that.
This is the statutory agency that is STILL suppressing details about the death of at least seven satellite-tagged Hen Harriers, most of whom were found dead over a year ago and yet are still listed on Natural England’s tag database, implausibly, as ‘awaiting post mortem’ (see here for a previous blog about these birds).
They’re not ‘awaiting post mortem’ at all. The post mortems were all completed months ago (and in one case, over 18 months ago). Those post mortems have provided evidence (that I’m aware of) that at least some of these seven dead Hen Harriers were killed illegally.
The longer this information is suppressed, the further public confidence drops in any agency’s ability or desire to tackle these crimes.
















