National symbol or national pest? Abundant Canada geese populations a threat to ecosystems, research finds

… national pest? 
For decades, Canada geese — known scientifically as … of British Columbia, non-native Canada geese are overpopulating the … America, according to the Canadian Wildlife Service. 
Dominic Janus … salt marshes — and Canada geese have been heavily …… national pest? 
For decades, Canada geese — known scientifically as … of British Columbia, non-native Canada geese are overpopulating the … America, according to the Canadian Wildlife Service. 
Dominic Janus … salt marshes — and Canada geese have been heavily …