Migratory Lapwings and waders at the Thames Estuary. It is feared that Avian Flu (Bird Flu) could be brought to Britain from Europe by migrating birds.

birds of a feather stick together birdwatching british birds cliffe pools england english lap wings flocking flying together freedom lap wing birds large group of birds nature reserve river thames take to the sky wet lands wild fowl animal behavior animal behaviour aves avian avians bird birds of a feather flock together daytime estuaries feathers flock of birds horizontal in flight marshes marshland migration natural world nature outdoors outside stock image stock photo stock photograph water wetland wetlands wild birds wildlife photography wildlife stock animal themes height elevation altitude flight flying wilderness wild places wild animal wild animals wildlife safari safari safaris safari destinations safari destination large group of animals color image color colour united kingdom uk conservation