A few days ago i saw what i thought to be a single black balloon drifting across the toronto skyline and really didn't think much of it. just a singular "balloon" all black, around 7 pm in the evening, and drifting eastward. two days later, see something glimmer in the evening sky at 8 pm, and see several of these black balls. i got my binoculars and counted 7 of them. there were two individual pairs that distanced apart from one another in a sort of rectangle shape and drifting westwards, while at the back of the four individuals there were 3 what looked ot be bunched together, hence why i thought they were balloons, but i could not see a string that could've been holding them together. as i continued to follow the ones up front, they began to take on a sort of boomerang shape. i continued to watch them up until i lost them in the setting sun.