Across
- 2. 70 to 80 percent decline over the past ___ years
- 5. mistaking bodies of waters for others
- 7. population has already dropped significantly
Down
- 1. global warming could affect the survial
- 3. affected by tar sands pollution
- 4. how many whooping cranes are left
- 6. changes in climate
- 8. flycatchers nest made with