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Scientific Sources

Mammal, Marten, Minnesota, Mustelid

Martens

GilBert, J. H., P. A. Zollner, A. K. Green, J. L. Wright, and W. H. KaraSov. 2009. Seasonal field metabolic rates of American martens in Wisconsin. The American Midland Naturalist 162:327–334.
Joyce, M. J. (2013). Space use behavior and multi-scale habitat selection of American marten (Martes americana) in northeastern Minnesota (Doctoral dissertation, University of Minnesota).
Long, R. A., P. MacKay, J. D. Sauder, M. Sinclair, K. B. Aubry, and C. M. Raley. (2024). An overwinter protocol for detecting wolverines and other carnivores at camera traps paired with automated scent dispensers. Ecology and Evolution 14:e11290.
Lucid, M., Cushman, S., Robinson, L., Kortello, A., Hausleitner, D., Mowat, G., ... & Paetkau, D. (2020). Carnivore contact: A species fracture zone delineated amongst genetically structured North American marten populations (Martes americana and Martes caurina). Frontiers in Genetics, 11, 557906.
McCann, N. P., Zollner, P. A., & Gilbert, J. H. (2017). Classifying carnivore tracks using dimensions that control for snow conditions. Wildlife Society Bulletin, 41(2), 278-285.
Slauson, K. M., & Zielinski, W. J. (2017). Seasonal specialization in diet of the Humboldt marten (Martes caurina humboldtensis) in California and the importance of prey size. Journal of Mammalogy, 98(6), 1697-1708.
Mammal, Mustelid, Washington, finished

Short and Long-tailed Weasels

Elsasser, S. C., & Parker, G. H. (2008). Morphometric criteria for distinguishing species and age-cohorts of Ermine (Mustela erminea) and long-tailed weasel (M. frenata). Acta Zoologica Academiae Scientiarum Hungaricae, 54(1), 75-88.
Lisgo, K. A. (1999). Ecology of the short-tailed weasel (Mustela erminea) in the mixedwood boreal forest of Alberta (Doctoral dissertation, University of British Columbia).
Mammal, Washington, finished, pika

American Pika

Galbreath, K. E., Hafner, D. J., & Zamudio, K. R. (2009). When cold is better: climate‐driven elevation shifts yield complex patterns of diversification and demography in an alpine specialist (American pika, Ochotona princeps). Evolution: International Journal of Organic Evolution, 63(11), 2848-2863.
Johnston, A. N., Bruggeman, J. E., Beers, A. T., Beever, E. A., Christophersen, R. G., & Ransom, J. I. (2019). Ecological consequences of anomalies in atmospheric moisture and snowpack. Ecology, 100(4), e02638.
Millar, C. I., Westfall, R. D., & Delany, D. L. (2016). Thermal components of American pika habitat—how does a small lagomorph encounter climate?. Arctic, Antarctic, and Alpine Research, 48(2), 327-343.
Ray, C., Beever, E., Loarie, S., Brodie, J. F., Post, E., & Doak, D. F. (2012). Retreat of the American pika: up the mountain or into the void. Wildlife conservation in a changing climate. University of Chicago Press, Chicago, IL, 245-270.
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awoodswalk_photography

Wildlife ecologist, photographer, camera trapper, and certified tracker with a primary focus of studying martens and fishers. No baits or lures used.

Another day, another memory to treasure for life. Another day, another memory to treasure for life. While trailing moose in NW Maine, my friend and I were charged by a protective mother coyote. We had inadvertently come close to her den, and she made sure we knew it!

Barking at us from a distance, she suddenly rushed through the forest towards us, stopping only 60ft away. Staring at us, there was a momentary sharing of information as our eyes locked. Having delivered her message, she sped away as quickly as she had come. Out of sight, she continued to bark for a couple minutes. My friend and I stood in amazement, then, sharing a congratulatory smile, we turned and left.

#coyote @projectcoyoteorg
Long overdue post! These photos are of the young f Long overdue post! These photos are of the young female fisher, F20, feasting on one of two dead turkeys I found while exploring a small cluster site of her collar GPS points, not far from a road, back in mid May. I don't know how the two turkeys died, but F20 was certainly taking advantage of this opportunity. This young female (having been born in March of 2025) was only 4.5 lbs when we captured her. It's possible that she could have killed these turkeys - I've heard second hand accounts of people seeing fishers attack turkeys - but to have killed two, being a relatively small fisher, seems odd.

Nikon 7ii+ 24-70mm lens, 3 flashes, and @camtraptions PIR V3 sensor
I spent last evening with a pair of local loons. T I spent last evening with a pair of local loons. The pair either did not nest or did not successfully rear chicks this year, unfortunately. However, they seemed to remain tightly bonded. The pair were inseparable as they slowly drifted and quietly spoke with one another amidst the pickerel weed and sedges.

#loon #squamlake #newhampshire #wildlifephotography
A mother otter and one of her two pretty much full A mother otter and one of her two pretty much fully grown kits.

#otter #wildlifephotography #wildlife #cute
I have a huge backlog of photos from spending two I have a huge backlog of photos from spending two weeks sailing along the SE Alaskan coast. So I'm going to release the photos in batches.

First, some context because I don't think I fully explained why I was in Alaska. I was hired by a small interpretive guiding company, Raven, to work as a naturalist for a couple of Tauck (a luxury tour company) tours that were sailing aboard a Silversea cruise ship. The tour was one week, starting in Anchorage, then to Seward (where we boarded the ship), Juneau, Skagway, Sitka, Ketchikan, and ending in Vancouver, BC. I went southbound with one group, then went back north (basically in reverse order) with a second group of guests.

My job as the naturalist was to prepare and give presentations on the animals, ecosystems, and natural history of SE Alaska. Having never been to Alaska previously, I spent dozens of hours preparing presentations and familiarizing myself with the landscape and wildlife before departing for the voyage.

One of the most exciting elements of the trip was seeing glaciers! We saw dozens, some way up close, and others high up on distant mountainsides. I'll leave this post as a collection of just a handful of glacier-related images.

1. Hubbard Glacier: largest tidewater glacier in North America and one of only a few growing glaciers. For context the glacial wall soars 300ft above the water's surface. 
2. Ash lines in the glacial ice
3. Piece of a glacial moraine
4. An iceberg that calved off of Hubbard Glacier
5. Davidson Glacier
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