O knihe
Bird vocalization includes both bird calls and bird songs. In non-technical use, bird songs are the bird sounds that are melodious to the human ear. In ornithology, bird 'songs' are often distinguished from shorter sounds, which may be termed 'calls'.
- Vydavateľstvo: Alphascript Publishing
- Formát: Paperback
- Jazyk:
- ISBN: 9786130221478
Anglický jazyk 
