What does talking about 'the birds and the bees' mean?

I will tell you when you are older

It means they want to talk about sex, in an educational way.

They are talking about sex. They are talking about Human Reproduction.

Parrot

There is actually a story about making babies called Birds, Bees, Babies in which the birds and the bees make a baby and then the stork delivers it. They use frogs and snails and puppy dog tails. The...