Category Archives: Mammals

Microtus Runway

This gallery contains 6 photos.

  On Big Valley Mountain (Lassen County CA) the snow was about 8″ deep. While hiking near the summit recently, Leonard and I discovered two separate runways atop the snow. Each runway consisted of two entrance/exit holes about four feet … Continue reading

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Fisher Tracks

This gallery contains 6 photos.

Leonard and I spent the Winter Solstice hiking on Big Valley Mountain, a block fault mountain in Modoc County CA. Our goal was to again find bear and mountain lion tracks. We did see mountain lion tracks, but no bear … Continue reading

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Ponderosa Pine Regeneration

This gallery contains 4 photos.

Ponderosa pines (Pinus ponderosa) are considered one of the most fire resistant conifers in the west because of their seedlings’ propensity to benefit from mineral soil seedbeds and open habitats created by wildfires. This fire resistance increases as the tree … Continue reading

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Obligate Hibernation

Animals exhibit many different types of dormancy. One of them, hibernation, refers to inactivity and metabolic depression associated with low temperatures or food deprivation. Hibernation is characterized by low body temperature, slow breathing and reduced heart rate and a low … Continue reading

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Preoccupied

This gallery contains 3 photos.

About a week ago Leonard and I were walking along the Pacific Crest Trail in Warner Valley near Drakesbad (Plumas Cunty CA). The three mammals species we encountered were intently eating and much too preoccupied to be concerned by our … Continue reading

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Pronghorn Trivia

In May (see “Pregnant Pronghorn” 05-19-17) I posted a picture of pregnant pronghorn (Antilocapra americanna) and expressed my desire to once again see pronghorn kids this season. I did see several kids with their mothers earlier this summer . Unfortunately … Continue reading

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Ursus americanus

This gallery contains 4 photos.

A few days ago Leonard and I were in Upper Kings Creek Meadow at Lassen Volcanic National Park. While I photographed some Sierra corydalis (seeĀ Sierra corydalis 08-09-17), Leonard wandered off searching for other wildflowers. Soon Leonard rushed back. There was … Continue reading

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