W. H. Marshall, G. W. Gullion, and R. G. Schwab. 1962. Early summer activities of porcupines as determined by radio-positioning techniques. Journal of Wildlife Management 26(1):75-79 [ER 1794]

Contributed by John Alroy, entered by John Alroy on 2016-02-09

Samples: none

Size measurements: Erethizon dorsatum (body mass 4500 g), Erethizon dorsatum (body mass 3300 g)