Fluffy is distracted. She leaves with the white fleck from the floor.
We thought that Fluffy's last three chicks might fly today, so I rigged up the power supply for Box2 to come on at about 5 o'clock and left i-Catcher running all night. It was just as well. The last three chicks left within a minute of each other at 7.12am. Even more remarkable, a woodpecker (Greater Spotted as usual) was poking its head into the nest only seconds before the first chick flew and again about 7 minutes afterwards. Was there a connection?
The first picture we have shows that Fluffy and her chicks were already active. At ten past five she comes to feed the chicks. She feeds one and as the chick turns to give her a sac in return, Fluffy gets distracted by a fleck of white on the floor of the nest, which was probably the result of an earlier accident. As a result, she picks this up and leaves with it, leaving the poor chick to poo into empty space.