wrens, several, including one really quite cross sounding one (on a branch very close to river);
blackbird bathing in river;
moorhen looking for things in weeds around piece of detritus in river (actually a signpost from the national cycle network...).
Thought last night on way home that there are more blackbirds around in the evening.
And, on late-ish drive from Foxton Locks to home, an owl.