Pinyon mouse tracks Arizona’s pinyon-juniper woodland closely, with records reaching from Petrified Forest National Park’s badlands and grasslands to the ponderosa-and-pinyon transition of Coconino National Forest. Its occasional-tier ranking is a fair showing for a small nocturnal mouse in a habitat that covers a large share of the state’s middle elevations.
Records build through spring, peak at 28 in June and 27 in July, then fall off sharply by fall, a summer-heavy pattern that likely tracks monsoon-season trapping activity and increased foraging more than a true single-season population surge.
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