Tricycle with wings?

That is what I call these little critters flying all over the place!! ;-)

It almost feels like the Wright brothers are staying at Hartbeespoortdam, all sorts of little flying objects in the sky above us!! These really remind me of a tricycle, just note the man sitting there and the three wheels! Well, I suppose they're having a great time!! :-)

Wee bit better in BIG methinks!