More heard than seen. Scene-setting, we live in an 1840’s terrace, the wall height in the bedroom at the front being 7’. The window too is at 6’. At about 6am, we were awakened by several very loud ‘CAW’ noises. That being a jackdaw, which in my stupor I assumed would be on the roof or gutter, and that the next I would hear was feet on slate. Not a bit of it - instead there were 5 or 6 loud knocks on the glass, from the jackdaw pecking it! It must have somehow balanced on the clematis the runs under the window. Quite startling.