Honey Bee Ccd Honey Bees Dying Mysteriously?

Honey bees dying mysteriously? - honey bee ccd

I went to open a window and a bee does, but when I tried to drop him from the house, you are dead straight. This is due to Colony Collapse Disorder (CCD)?
If yes, this is what is really happening to the bees?

And,
In front of my house I have again buzzing about 20 or 25 bees on the ground, but could not fly at all, and were about to die. If this is the cause of CCD, too?