Issued by the Soviet Union in 1990, this 15 kopeck postage stamp beautifully depicts two Common Goldeneye ducks in flight over a lake, capturing the motion and grace of these diving birds. The inscription “Обыкновенный гоголь” and the Latin name Bucephala clangula identify the species. Part of the USSR’s nature-themed definitive series, this stamp highlights the country's dedication to wildlife conservation through philatelic art. A striking piece from the twilight years of Soviet postal history, admired for its realism and fine color detailing.