A few sounds from the Old Vic a couple of nights ago HERE. 14 species recorded included Wigeon, Teal, Snipe, Black-headed Gull, Redwing, Fieldfare, Song Thrush, Blackbird and Tawny Owl.
An interesting (for me as still trying to learn these ) comparison of single nocturnal flight calls of Blackbird, Redwing and Song Thrush. Excellent article on Blackbird, Song Thrush and Redwings NFCs HERE .
Had my first summer migrant, a Sand Martin at Otmoor on 22nd March and a check round the airfield and River Thame on 23rd produced little apart from a flock of 96 Stock Dove, a Corn Bunting and plenty of Skylarks in song. Looks like most of the wildfowl have cleared out from the River between the bridges. Ebird lists HERE and HERE.