Last April I discovered that a heron was visiting our garden pond soon after dawn, making alarming inroads into the frog and newt population, which necessitated some emergency work, installing a protective net. This spring I protected the pond with criss-crossed wires from the beginning of the frog spawning season, when the pond was a living frog soup and the carnage from a heron visit would have been horrific. Earlier this week I removed the unsightly protective wires, assuming that the heron wasn’t coming back. Too soon. It was back again this morning. I'm guessing that it's the same bird, but there's no way of knowing.