Professor Acorn's We're as Native as You!
This website counters many arguments put forth by those working to control Great Britain's grey squirrel population, as well as presenting some of the perceived dangers of culling the grey squirrel population. The website also provides a way for people to help preserve the grey squirrel.
Red Squirrels in South Scotland: Grey Squirrel Control
This website explains why the grey squirrel is considered a threat to the red squirrel and also outlines the strategies being used to control the grey squirrel population. The site also features a section for people interested in assisting the organization with its preservation efforts.
Center for Invasive Species and Ecosystem Health
This website provides a list and images of invasive species, including vegetation, mammals and birds, in North America. The website also lists ways that people can effectively manage and control invasive species.