TY  - SOUND
AU  - Ross, David L.
TI  - Costa Rican bird songs
U1  - 108 DC 
CY  - Costa Rica
KW  - COSTA RICA
KW  - SONIDOS DE AVES
KW  - SONIDOS NATURALES
N1  - 1. Widespread species.
2. Common rainforest species.
3. Caribbean rainforest species.
4. Pacific rainforest species.
5. Middle elevation rainforest species.
6. Dry forest species.
7. Monteverde Area and cloudforest species.
8. Highland species
ER  -