fran said:

I vote grackles - they bully everything.

They are native birds, fun to watch interact with each other, and they go
after the (stupidly introduced) house sparrows. Not the intellectuals crows
and jays are, but grackles are still OK in my book.

--
Pat in Plymouth MI ('someplace.net' is comcast)

Any technology distinguishable from magic is insufficiently advanced.
(attributed to Don Marti)