Fisher is one of the few North American predators agile enough to hunt porcupines, flipping them to attack the unprotected belly, though Maryland’s small number of records reflects this large weasel’s return to only the state’s most forested western counties after historic clearing pushed it out. NatureServe ranks the species S3, Vulnerable, here, a real conservation signal rather than just thin documentation.
Records cluster in the winter months of January through March, with a second rise in June and July, likely tracking the breeding season and the period when young fishers disperse to find new territory.
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