_Specimens in park collection:_ None. The mink occurs over nearly all of North America, from the Gulf of Mexico north to the Arctic Circle. Records from the park are few in number and show that it ranges mostly at the lower elevations, although it has been seen at lakes around 5,000 feet. Most records have been obtained along the Nisqually and Ohanapecosh Rivers and around Lake Louise. [Illustration: The weasel is a tireless and efficient hunter.] The mink seems to be equally at home in the forests or in the open meadows—all it requires is a watercourse or lake that will supply food of some type. Minks are great travelers, often following a stream for a considerable distance as they hunt. The hunting pattern is erratic and every little thing that attracts attention apparently bears investigating. This animal is an expert swimmer and can go long distances under the water in pursuit of fish. Other foods include almost any type of small mammal, birds, eggs, frogs and crustaceans. There seems to be no sense of fear in a mink and in a fight it is an extremely dangerous adversary. Woe be unto the dog that attempts to corner it, as even the largest dogs usually are sent home with badly slashed faces. Like several other members of the weasel family, a mink gives off a strong odor if disturbed. WASHINGTON WEASEL, LONG-TAILED WEASEL _Mustela frenata washingtoni_ (Merriam) The Washington weasel is the largest weasel known to occur in the park, measuring around fifteen inches in total length. During the summer it is dark brown above, darker on the head, with the under parts a dull yellow, lighter on the chin and throat. About two inches of the tip of the tail is black. In the winter its coloration may range from a dull brown, with white underparts, to almost pure white except for a yellowish tinge on the belly, rump and tail. The black tip of the tail remains unchanged. _Specimens in park collection:_ RNP-45, RNP-79, RNP-82, and RNP-94; Longmire Museum, Park Headquarters. Weasels inhabit practically all of North America. The Washington weasel is found in the Cascade Mountains of Washington and Oregon, at least as far south as Fort Klamath, Oregon. One specimen is reported from the Chicago Field Museum as having been taken from Happy Lake in the Olympic Mountains. In the park it is found from the lower elevations to forest line and above, being especially common around the open valleys between 4,000 and 5,000 feet.