This national survey is ongoing.
The BTO are keen to encourage birdwatchers to go out and listen for Long-eared Owls, one of our most poorly known breeding species. The Rare Breeding Bird Panel report for 2018 was able to record details for just 227-295 confirmed breeding pairs for the UK, with none in Herts, but this is almost certainly a significant underestimate. Now is a good time to go out and listen for the species in areas of suitable habitat. Please see https://www.bto.org/our-science/projects/project-owl/learn-about-owls/long-eared-owl for information on the species. If you do have the good fortune to locate a Long-eared Owl, please contact the Herts Bird Recorder in the first instance firstname.lastname@example.org and refrain from putting out news more widely, as this species is easily disturbed.