| Subject | English | Russian |
| ornit. | ruddy crake | красноногий погоныш (Corethrura fusca, Porzana fusca) |
| ornit. | ruddy crake | рубиновый погоныш (Laterallus ruber, Rufirallus ruber) |
| ornit. | ruddy-breasted crake | красноногий погоныш (Corethrura fusca, Porzana fusca) |
| biol. | Siberian ruddy crake | большой погоныш (Porzana paykullii) |