About this episode

The episode discusses the critical waterfowl landscapes of California’s Central Valley and the challenges facing wetlands and duck populations.

California’s Central Valley is one of the most important — and most intensively managed — waterfowl landscapes in North America. In this episode, host Dr. Mike Brasher is joined by Matt Kaminski , Ducks Unlimited Regional Biologist, and Dr. Dan Smith , DU Waterfowl Scientist, for a deep dive into habitat conditions, conservation challenges, and the future of wetlands in the Pacific Flyway. From highly engineered water systems to changing land use and declining snowpack, the conversation highlights how water management decisions shape waterfowl populations across the entire annual cycle — from breeding to migration and wintering. In this episode, listeners will hear about: Current breeding habitat conditions in the Central Valley The role of snowpack and water supply in wetland availability Why California remains critical for wintering AND breeding ducks Declines in mallard production and possible causes Changes in agriculture, especially rice, and impacts on ducks The importance of watergrass as a key food resource Highly engineered water systems and wetland infrastructure Seasonal vs. semi‑permanent wetlands explained The concept of “reverse cycle wetlands” and brood habitat Why…

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