Nesting Season Begins at the Wetlands
April marks the start of nesting season for many species. Birds are building, guarding, and in some cases already incubating eggs. You may notice:
  • Birds carrying grasses, twigs, or even bits of trash
  • Increased territorial behavior (especially from blackbirds!)
  • Pairs staying close together along the water’s edge
Please remember this is a sensitive time; giving wildlife space helps ensure a successful breeding season.
It’s not just birds; warmer temperatures trigger a surge in aquatic life. Insects begin to hatch, which in turn attracts fish, which then attracts larger predators like herons and egrets.
Great Blue Heron hunting in the American Canyon wetlands with other shore birds. White pelicans and other shorebirds at low tide in the American Canyon Wetlands.
This seasonal chain reaction is a great example of how connected the wetlands ecosystem is. April is a perfect time to slow down and notice the small things:
  • Dragonflies begin their life above water after months below it
  • Frogs calling from hidden pockets in the marsh
  • New green growth is pushing up along the trails
Each of these is a sign that the wetlands are in a period of rapid renewal. Spring is one of the best times to visit the wetlands with fresh eyes. Whether you’re a seasoned birder or just out for a walk, there’s something new to notice every day.