Please familiarise yourself with this advice. For Sussex, Marsh Harrier, Woodlark and Dartford Warbler should be treated in the same way. Although some breeding sites for the latter two species are quite well known, there could still be risks from drawing attention to breeding locations as a result of disturbance. Please report sightings of Lesser Spotted Woodpecker in the breeding season to Dr Ken Smith, see http://woodpecker-network.org.uk/.
18 April 2021