Nick D and myself went to High Royd late evening to check if there was a Swallow roost at the sewage plant but there was nothing doing as far as a roost is concerned.
30+ Swallows through and a similar number of House Martins were feeding briefly over the woodland along with a small number of Swifts. Everything seemed to head off down river towards Sowerby Bridge.
3 or 4 Grey Herons about as well and the usual large group of Carrion Crows on the filter beds.
Viewing the site is a real struggle through the dense vegetation of trees shrubs and Himalayan Balsam though there is still bags of potential there both for resident birds and migrants and other wildlife.