The term 'Brown Ermines' refers to a species of mammal in the weasel family, also known as stoats or stots. The scientific name for this species is Mustela erminea, and they are found throughout the Northern Hemisphere. They have a brown coat in the summer and a white coat in the winter. They are carnivorous and feed on small rodents, birds, and insects. They are also known for their agility and speed, and can reach speeds of up to 30 mph.