| Artist | : | Bird call: Swallow (Dymówka) |
| Title | : | Singing Birds of Poland - Topic |
| Duration | : | 30 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |
| Artist | : | Bird call: Swallow (Dymówka) |
| Title | : | Singing Birds of Poland - Topic |
| Duration | : | 30 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |