In reply to Raskye:
I built a small shed for a clientlast thursday ,but did not make a door.
went to measure the door opening today ,and spotted that there had been quite a bit of nest construction inside.
am happy that the birds will have enough access when I fit the door ,as the asbestos corrugated roof sheets have quite big corrugations.
Few years ago ,putting up a house ,I regularly had to catch the swallows which had decided to nest in the house.
They would stun themselves crashing into the patio doorsets and have to be rescued.amazing colours when you have one in your hand ,their tiny hearts pounding.
Could not finish plasterboarding the ceiling until the chicks had all flown the nest.
after a couple of days of sheperding and sometimes having to catch the fledgling birds , the whole family were gone.
Off on their big adventure.