Douglas and Nikki are with their Dad in the garden, under a tree.
Dad points upwards. "Do you see that nest?"
Douglas and Nikki stare through the leaves. High-up in the tree hangs a nest made with twigs and clay.
"There are some baby blackbirds in it, "Daddy whispers. "Look, their parents are flying in."
A brown and a yellow bird land near the nest.
They have insects in their beak.
"The black bird is the father," says the father.
"What do they do with the insects?, asks Douglas.
"They are for the little ones, look."
When the little babies hear their parents, they make a contest in chirping.
The parents try to divide the insects equally amongst the open beaks. As soon as the insects are finished, the babies start chirping again. The blackbirds fly away to fetch more insects.
"This way they are busy the whole day to feed their hungry young ones," Dad says. "By the end of the day they must be dead beat." "They are very lucky not to need nappies, like we humans do."
"But what do the babies do then without a nappies?" Nikki wants to know. " Do they pooh in their nest?"
"No," says Dad, "then the nest would get awfully dirty." If they need a pooh, they put their backside over the edge. So it just drops down."
Daddy only just said this, when a white little pooh fell on his head.
This proves beyond reasonable doubt, that he told the truth.