18 - Nest Boxes

To your right, you see a large wood duck nest box attached to a valley oak tree. Wood ducks are cavity nesters, meaning they typically lay their eggs in natural tree hollows near water. Because suitable nesting sites can be limited, Preserve staff install these nest boxes on trees close to the water’s edge to provide safe, secure places for wood ducks to raise their young. These boxes help increase local wood duck populations by protecting nests from predators and flooding. Wood duck ducklings leave the nest within a day or two of hatching, dropping down to the water below to begin their aquatic life.

Cosumnes River Preserve River Walk
  1. 1 - Trailhead
  2. 2 - Willow Slough Bridge Start
  3. 3 - On Willow Slough Bridge
  4. 4 - Managed Wetlands and Trail Intersection
  5. 5 - Blackberry Bushes
  6. 6 - Oak Galls
  7. 7 - Valley Oak and Pump Station
  8. 8 - Middle Slough
  9. 9 - Freshwater Seasonal Marsh
  10. 10 - River Otter Slides
  11. 11 - Viewing Area
  12. 12 - Cattails
  13. 13 - Mugwort
  14. 14 - Valley Oak Grove
  15. 15 - Santa Barbara Sedge
  16. 16 - Poison Oak
  17. 17 - Cosumnes River
  18. 18 - Nest Boxes
  19. 19 - Oak Savannah
  20. 20 - The Point
  21. 21 - Live Oak
  22. 22 - Valley Oak and Marsh
  23. 23 - Railroad