Not sure why they would walk around in this stuff, but guess when they are looking for food, anything goes. All this foam was from the wave action and has been blown back up into a small slew and collected there.
@dllawson@dkbarnett@koalagardens Thanks Day, Delwyn and KG. That looks pretty nasty, but fortunately the wind blew it back out today, and it had pretty much cleared up.
