I'm an ecology student who lives on a lake in the Hudson Valley, NY. When I was little,https://showbox.tools/ I remember seeing all types of waterfowl occupy the lake: wood ducks, canada geese, mallards, even the occasional loon. https://trackeasy.fun/usps/ Now, I only see geese (and they've stopped migrating for the winter). I know this sounds like a recital of Silent Spring, but I'm really curious about what generally causes this.