There is a phenomena I’ve noticed at Alki.  Right after sunset, a breeze reliably kicks up for about fifteen minutes.  During that time all the Seagulls take flight and seem to totally delight in the breeze.  They say that hummingbirds are the only birds that can hover and maintain a stationary position in the air.  Not so under these conditions.  The gulls will often shape their wings such that, positioned into the wind, they get just enough lift to maintain a stationary position falling into the wind like a kite with no visible tether.