You can find lots of beautiful birds in Golitsyn ponds at the Central Gorky Park in Moscow, such as graceful swans, a big family of ducks with a brood of ducklings, pigeons and sparrows. The park has changed in a positive way. Now it is a very nice place in the very center of Moscow. After you enter the park, you should walk about 10 minutes until the ponds. I advise you to rent a catamaran or go out boating.
On the map the pond is marked in Red (metro station Oktyabrskaya/Park Kultury):