Aquatic and semi-aquatic plants start to grow in the basins. By late spring, invertebrates start to appear. Resident birds begin nesting. Summer Suck broods feed on invertebrates ground in playas.
Thunderstorms continue to fill or replenish many basins.
Fall Ducks and geese use playas as stopovers on their way further south. Birds that stay the winter begin to arrive. Playas start to dry up. Chances of botulism outbreaks increase for waterfowl. Winter Wintering waterfowl numbers peak in December or January.