That is actually a social media joke rather than an official name change.The moniker began trending online as a satirical response to U.S. President Donald Trump’s move to rename Lake Ontario to “Lake America”. Social media users joked that if cross-border geography was getting arbitrary name changes, Canada geese might as well be rebranded as “Donald Ducks” in response.Taxonomically, the bird remains the Canada goose (Branta canadensis).
Canadian geese will now be known as “Donald Ducks”

