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Weasel Damage Assessment

Last Updated: February 05, 2008 | Related resource areas: Wildlife Damage Management

Weasels | Weasel Overview | Weasel Damage Assessment | Weasel Damage Management | Weasel Acknowledgments | Weasel Resources | ICWDM | Wildlife Species Information



Damage and Damage Identification

Least weasel, Mustela nivalis (left); Shorttailed weasel, M. erminea, in summer coat (middle); Short-tailed weasel in winter coat (right).
Least weasel, Mustela nivalis (left); Shorttailed weasel, M. erminea, in summer coat (middle); Short-tailed weasel in winter coat (right).

Occasionally weasels raid poultry houses at night and kill or injure domestic fowl. They feed on the warm blood of victims bitten in the head or neck. Rat predation on poultry usually differs in that portions of the body may be eaten and carcasses dragged into holes or concealed locations.

Legal Status

All three weasels generally are considered furbearers under state laws, and a season is normally established for fur harvest. Check local and state laws before undertaking weasel control measures

Economics of Damage and Control

Svendsen (1982) writes: “Overall, weasels are more of an asset than a liability. They eat quantities of rats and mice that otherwise would eat and damage additional crops and produce. This asset is partially counter-balanced by the fact that weasels occasionally kill larger nontarget species beneficial animals and game species. The killing of domestic poultry may come only after the rat population around the farmyard is diminished. In fact, rats may have destroyed more poultry than the weasel. In most cases, a farmer lives with weasels on the farm for years without realizing that they are even there, until they kill a chicken.”

Weasels | Weasel Overview | Weasel Damage Assessment | Weasel Damage Management | Weasel Acknowledgments | Weasel Resources | ICWDM | Wildlife Species Information




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