Swallows in the Shed

Back in May, I was in Downderry in workshop in a field one sunny afternoon when suddenly the building was descended upon by a small flock of swallows, careering round and round and arguing loudly. It seemed to me at the time that four of the flock stayed behind and the rest moved on.

I'd not been back till today - and there are two nests, only about three feet apart, up below the roof. Both nests are overflowing with loud babies almost at the point of fledging.