Originally posted by Canada_Rockies The list is insanely long.
List of invasive species in North America - Wikipedia
The birds...
Columba livia (rock pigeon)
Cygnus olor (mute swan)
Haemorhous mexicanus (house finch)
Molothrus bonariensis (shiny cowbird)
Myiopsitta monachus (monk parakeet, Quaker parrot)
Passer domesticus (house sparrow)
Streptopelia decaocto (Eurasian collared dove)
Sturnus vulgaris (European starling)
House Finch is a North American native but introduced to the east coast. Nobody really seems to mind...By that definition it's not really an 'invasive' species, the whole list has many 'introduced' species that aren't really 'invasive'...Rock Pigeon, Mute Swan, Monk Parakeet, House Sparrow, European Starling all meet the criteria for 'invasive'...