Monarchs on the move

[Quillback]

Walking across the top of one of the dams on a local lake, dam runs east-west, had a pretty stiff wind blowing out of the west/northwest, probably 20 MPH or so.  Saw maybe 8 or 9 monarchs come over the dam from the north and then fly south directly across the lake.  You wonder how they can fly across a 20 MPH wind and hold a straight course but they do.