Any of several bushy-tailed rodents of the genus Neotoma of western North America; hoards food and other objects - pack rat, trade rat, bushytail woodrat, Neotoma cinerea
Noun: pack ratpak rat
Someone who collects things that have been discarded by others - magpie, scavenger
Derived forms: packrats, pack rats
Type of: aggregator, collector, hoarder, wood rat, wood-rat