Pack rat - Alchetron, The Free Social Encyclopedia

Of the eight species of woodrat found in North America, the bushy-tailed is the only one native to Montana. Better known as "pack rats," these rodents are compulsive collectors, and favor shiny objects like broken glass, tinfoil and bottle caps. Pack rats build complex structures called "middens," which provide protection from predators and usually shelter their nests. Built of sticks, bark, rocks, bones, animal droppings, and leaves gathered during nightly forays, middens are solidified by urin

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It still amazes us as a pack how fast these rats can dig on in the soft ground when they know they’re being hunted by the terriers. Unfortunately, for them, the pack is much faster, it may look like “it’s Just one rat" but in reality the pack went on removing a whole nest full with juveniles, which will be adults in another five week from just digging down. Sometimes it’s hard to locate the nests but with the dogs noses that is 40 times far greatly then ours they soon located & dispatch quickly.