Analysis of information sources in references of the Wikipedia article "Chantry Island (Ontario)" in English language version.
It is the largest Federal Migratory Bird Sanctuary between James Bay and Point Pelee. There are approximately fifty thousand birds (including chicks) on the island during the breeding season.
...the MBS boundary extends 183 m offshore from the normal high-water mark. At that offshore boundary, the water depth is about 20 m.
It is the largest Federal Migratory Bird Sanctuary between James Bay and Point Pelee. There are approximately fifty thousand birds (including chicks) on the island during the breeding season.