rat Blackbird Small grebe Wood pigeon Marsh harrier Marsh harrier Cormorant Small grebe Herons Canada geese in flight Avocets and gulls Great tit Great tit and chaffinch Great tit in flight Great tit in flight Small grebe Small grebe Small grebe Small grebe Small grebe A long tailed tit Reed bunting Reed bunting Tufted duck Mallard Coot Small grebe Small grebe Heron Heron Reed bunting Reed bunting Wigeon in flight Wigeon in flight Gull in flight Robin Heronry Heronry Heronry Heronry Burton Wetlands heronry Herons Incoming herons Heronry Heron in flight