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Invasive Animals
The Invasive Species found in Hawthorne Park are the Eastern Grey Squirrel and the House Sparrow. The Eastern Gray Squirrel has a strong impact on the ecosystem. They are a highly invasive species and can be found throughout British Columbia, including Hawthorne Park. They compete with native squirrels for food and habitat, which results in the native squirrels becoming threatened or endangered. They were first brought to Canada in 1914 when eight of the squirrels were released into Stanley Park, Vancouver. The House Sparrow as any other, spends it's time for survival, killing and hunting other bird’s nests and eggs. It competes against other native birds for food and shelter, pushing the native animals out of their habitat. House sparrows were brought to Stanley Park, British Columbia in 1898, and later on migrated to Hawthorne Park.

There have also been sightings of the Blue Heron. The blue heron is a large blue and grey bird, measured at over a meter in length. Since the Heron is so big, it is very east to tell apart from other birds. There are about 5,000-6,000 Herons found in B.C. Blue Heron are colonial birds. Colonial birds are birds that nest in large groups of Heron.