Every year around this time there is a mass arrival of ladybirds. We have a white house and it ends up covered with them. I have no idea where they come from, but the sky is filled with them. This will only last for a day or two, but it is an amazing sight whilst it lasts :)
There are also lots of dragonflies, which I guess are eating the ladybirds?
Are they young ladybirds hatching? Or What?
Iain