Some say that legal hunting in North America can adversely affect the long-term stability and growth of waterfowl populations.
The waterfowl population swells by thousands during the spring and fall migrations.
Though founded by sportsmen to help save declining waterfowl populations, DU works for more than just birds.
It has been established that the resident waterfowl population is a hugely larger polluter than any other source, save the runoff from the land.
Peak waterfowl populations of 75,000 use the wetland areas during the fall, winter, and early spring months.
This is a joint program of the United States, Canada and Mexico to rebuild waterfowl populations.
The only wild waterfowl populations known to be affected are those fed by man.
Peak waterfowl populations of 75,000 ducks have been recorded.
The millpond has a high waterfowl population; the shores are commonly covered with flocks of Canada Geese.
The results do not indicate total waterfowl populations in the state but show their relative abundance and give clues to long-term population trends.