(Sigh), releasing invasive species into novel areas is never a good idea.  Perhaps someone at Fish & Game should take a look at the negative impacts of invasive turkeys in California and elsewhere.

As for the general principal, consider invasive lionfish (Pterois spp.) off the Atlantic Coast of the southeast US and the Caribbean, feral starlings east of the Rockies in North America, feral pigs in Texas, feral foxes in the Aleutians, feral mongooses in Fiji and Hawaii, feral cane toads in Australia and feral cats pretty much everywhere.