One day to go for the garden opening, spent a lot of time in garden, and observed lots of interesting bird behaviour. A sparrowhawk took out a house martin above me yesterday. The old toilet was visited by a swallow twice today and also the spotted flycatchers were looking all around it for a nest site. We had the old toilet reroofed 12 months ago and use it to store pots and seed trays. The pied wagtails were active, with the female carrying nesting material around the summer house and the male chasing off a grey wagtail. Saw a green woodpecker as well today.