raingarden
Crowing
The migratory ducks are preparing to go north. But you also have resident ducks (muscovy, wood ducks and such) that may habve intermingled with the migrants.
Looking at the list of reports, it appears that the agency people doing the sampling have been hitting up the organized structured waterfowl hunts conducted by states on their wildlife management properties (Bear Island, SC for example). When hunting season ends their easy access to ducks for sampling dries up, So, there is a sampling bias that may make it appear that the virus is waning as we move into spring. Time will tell.
Looking at the list of reports, it appears that the agency people doing the sampling have been hitting up the organized structured waterfowl hunts conducted by states on their wildlife management properties (Bear Island, SC for example). When hunting season ends their easy access to ducks for sampling dries up, So, there is a sampling bias that may make it appear that the virus is waning as we move into spring. Time will tell.