Ptarmigan (Lagopus mutus) female in white winter plumage walking across snow covered field.  
Cairngorm Mountains, Scotland, UK. February.
 (non-ex)  ,  BIRDS,CAMOUFLAGE,FEMALES,GALLIFORMES,GAME BIRDS,GROUSE,LANDSCAPES,MOORLAND,MOUNTAINS,NP,SCOTLAND,SNOW,UK,VERTEBRATES,VERTICAL,WALKING,WINTER,National Park,Europe,United Kingdom  ,  Andrew Parkinson