Gyrfalcons
Both white and grey morph Gyrfalcons can be found in the Russian Far East, however, sadly these birds are targeted by collectors and I have heard estimates of up to 600 birds per annum 'finding their way' to the Middle East each year, with these reputed to sell for up to US$50,000 per bird. As a result, I won't say where this photo was taken but it is a very special experience seeing a family of young 'Gyrs' on their nesting ledge.