With more than 6 hours of listening, this sound document is the most complete existing in this domain. Songs during flight, shouts of migration 350 handled species through 850 recordings make of this work a tool essential to the ornithologists.
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This MP3-DISC presents 350 sorts(species) of birds in 850 recordings with their sounds during flight, for all Europe.
It is as well about singings(songs) during flight as about shouts of communication or about migration.
The notebook of 124 pages (French, English, German) contains detailed information, the dates of the recordings and the indexes of the sorts(species) with scientific names, as well as other interesting information.