There may or may not be proof of cats but I have watched city council meetings and at least one man said he saw them taking ducks from the ponds, a mother said it traumatized her kids when the ducks they were feeding got carried away to be eaten. I'll only say this, no matter what leftists will flatuate the word "debunked" to any of these claims while the right is at the point they'd believe they were done with cats and dogs and now going after peoples parrots (Polly's last words were "Help me......") I only know that for yhthe last 20 years or so Canadian Geese have been thier own undocumented immigrants as they invaded and took over living space of Mallards and other local species, they leave little green love notes everywhere on the ground, are agressive and superfluous but it looks like they've met thier match in another invasive species because they've been dissapearing, people notice the sudden decline in thier numbers, something is happening to them, but I know whatever that happends to be it will have been "debunked" before I ever type it.