A couple of nights later, the chicks were again showing quite well. Three of them could be seen in the highest trees (they seem to prefer the higher ones) and the mother was again present feeding them.
For the past couple of evenings I’ve been watching some young Tawny owls (Strix aluco) in my local woodland. The chicks left the nest a few weeks ago and can now fly quite well and are pretty much full size. The mother will continue to feed them over the summer until the autumn when they will have to find their own territories.