Black object over Wenatchee, WA.

Being the sky watcher that I am, at Approximately 4 pm (I do not know the exact time) I noticed what appeared to be a very large bird up in the sky. I ran into the house and called my family out. As we watched it, it began morphing and changing shapes. We then agreed at this point  that it was not a bird. My Brother In Law ran to his car and got his binoculars out to try and get a better look. By the time we got it into sight it has risen up considerably and he mentioned that it  looked like 2 parachutes connected together but was still changing shapes. The only problem with that theory, is that this object, like I said was rising up (not down like a parachute) as it moved East. The thing that really struck me was that it was "SO" black in color, in a way, blacker than the color black truly is. I also want to note that my Brother in Law is with the Air Force and he estimated that the object was at 10,000 feet. Towards the end of the sighting as he continued to observe with the binoculars he said that the object split into 2 possibly 3 before it disappeared from sight. He is a cut and dry Military person and this event really shook him up.