The Humber Bay Butterfly Habitat is an ecological restoration project that provides critical habitat for a variety of native butterfly species. Located along the shores of Lake Ontario in Toronto's west end, the Humber Bay Butterfly Habitat incorporates a diversity of native wildflowers, shrubs, trees, grasses, sedges and a variety of physical features known to support butterflies throughout all life cycles.

History and Ecological Restoration
What is now the Humber Bay Butterfly Habitat was once a barren piece of land created by the deposition of lakefill by the Toronto and Region Conservation Authority (TRCA) at the mouth of Mimico Creek. The newness of this area provided an opportunity for naturalization in an area experiencing urbanization, and through inter-agency, federal, provincial and volunteer efforts the land was transformed into habitat for butterflies and other wildlife. The area is now comprised of many different plant communities, including wildflower meadow, short grass prairie, woodland, and wetland.

The Humber Bay Butterfly Habitat opened in 2002 and a key component of the success of the project was the involvement of volunteer stewards. Dedicated volunteers have played a very large role in restoration efforts through planting native wildflowers, shrubs, trees, grasses and sedges, as well as removing invasive species and monitoring the plant and wildlife communities in the park.