Least Bitterns are remarkably elusive birds. This Male Least Bittern is lifting off in flight from his perch in the reeds. They live in marshes with tall reeds where they regularly hang motionless with their feet grasping reeds, known as the “bittern pose”. Least Bitterns sway in these reeds, which conceal these small herons. It is difficult to photograph Least Bitterns in flight because they fly suddenly from an invisible position.