swifts that were black

Ron Hirst

6+ swifts that were black (as backlit, and at a distance) flew south over SB Riviera hills at 8:45am. First impressions were that they were large black swifts, and flew as a loose group in a straight line, and with a few wingbeats and then a significant glide -- different than WT Swifts that usually flutter more and circle around. They flew south and no more followed. I can't definitively call them Black Swifts. Ron Hirst, SB