![](/img/cover-not-exists.png)
The Abundance of Tree Holes and Their Utilization by Hole-Nesting Birds in a Primeval Boreal Forest of Mongolia
Bai, Mei-Ling, Wichmann, Frank, Mühlenberg, MichaelVolume:
38
Language:
english
Journal:
Acta Ornithologica
DOI:
10.3161/068.038.0205
Date:
December, 2003
File:
PDF, 566 KB
english, 2003