
It looked to me like the Black-crowned Night Heron was drinking water from the pond at Angler’s Cove. I was wrong. It was bill vibrating, a type of behavior in which the heron opens and closes its beak beneath the surface of the water as a way to lure fish. The warm weather and bright sunshine here have helped the Azolla expand across the water obscuring what’s under the surface. I’m guessing that the Heron decided that bill vibrating would be the most effective way to get its breakfast when it was difficult to see what was beneath the surface because of the invasive plant floating on top.





















