Additions
Around 1970, an addition to the "Stone house" was added as there was a need for more office space.
In 2006, this addition was removed and replaced with a more modern extension and a renovation of the interior of the original stone house. The main part of the stone house was left intact due to its status as a historical building. Modifications included a bird-viewing area with video cameras, basement storage and interior remodeling for a more natural habitat.
Read more about this topic: Cora Hartshorn Arboretum And Bird Sanctuary