There's a battle over birds in Lake Erie.
Canadian and American animal rights groups have joined forces to fight a cormorant cull by Parks Canada.
Thousands of the birds inhabit Middle Island, not far from Pelee Island, right near the Canada-US border.
The cull started when it was learned the birds' droppings were killing endangered plant life on the island.
Liz White with the Animal Alliance of Canada says culls are expensive and she believes the government's money could be better spent elsewhere. "This has cost many, many, many thousands of dollars to do this cull, for an island that nobody can go to, at a time when communities are facing cutbacks in all sorts of areas, but we have money to do this activity.
"The island's location is unfortunate for the birds," says White. "If that island were in the United States, none of those plants would be endangered. In fact, they're abundant. So by virtue of a border that's a few hundred metres dividing between one country and another, we're shooting birds for plant species."
White says the Cormorant has been driven to near-extinction and were absent from the island for 100 years which allowed the plants to grow.
Since the cull started in 2008, 20,000 of the birds have been killed.