Snow Geese

During the winter thousands of snow geese flock to the Puget Sound where they feed in farm fields and tidal wetlands. Wintering bald eagles flying overhead bring massive groups of geese into the air. Click here to see a gallery of images from a recent trip of mine.

Click on the image for more photos of wintering snow geese from the Puget Sound

Track and Sign Certification in southern Texas

In mid January, I made my first trip ever to Texas where I joined Texas State Wildlife Biologist and Cybertracker Evaluator Jonah Evans to deliver a Track and Sign Certification event for Urban Biologists from the Texas Parks and Wildlife Department (TPWD) in southern Texas. Jonah is also the author of an excellent Iphone App Tracking Guide and manages a website with a large collection of well organized track and sign photographs.

_MG_3998 Track and Sign Evaluator and Texas Parks and Wildlife Biologist Jonah Evans leads a discussion about the tracks left by several coyotes traveling on the shore of Laguna Atascosa in southern Texas.

The wetlands and thickets of this part of Texas are a birding mecca, with over half of all the species of birds which can be found in the continental United States making their way through the region over the course of the year. Besides bird life, the area is home to a wide variety of mammal species including oceolots, a very rare species in the United States as well as feral pigs and a variety of other introduced exotic species.

_MG_3943 Tracks of a bounding Hispid cotton rat (Sigmodon hispidus) in mud.
_MG_3962 Front and hind tracks of an oceolot (Leopardus pardalis). The Laguna Atascosa National Wildlife Refuge contains one of the only breeding populations of this wild feline in the United States.


photo(2) Congratulations to everyone who earned a Certification during this event. Click on the image for a complete list of certified wildlife trackers in North America.

The Making of Land: Where Kilauea Volcano Meets the Pacific Ocean, Hawaii

During my recent trip to the Big Island of Hawaii I had the amazing opportunity to hike with Darcy Ottey out to where the active volcano on the island, Kilauea, is currently releasing lava which is flowing into the Pacific Ocean. A 2 mile hike by starlight over basalt from earlier lava flows brought us to a primordial setting. Following an eerie orange glow we arrived at what truly could be described as the edge of the earth–a landscape made up of stars and sky, the pounding waves of the ocean and glowing lava pouring over 60 foot basalt cliffs into the sea, releasing plums of steam as it met the water. Before our eyes we watched flowing lava harden into rock and the coastline expand ever so slightly. As daylight came intermittent rain squalls, driven by a warm off shore wind brought a spectacular rainbow seemingly rising out of the glowing cliffs. It was definitely an experience I will never forget.










Moskowitz-3424 Darcy Ottey poses with the newest rocks on the planet. We watched the still slightly glowing pile of basalt to her left ooze out of a crack in the rocks and harden.
Moskowitz-3445 The line of smoke in the distance marks the path of lava flowing down from the rift where it comes out of the earth, seen here across a vast plane of basalt from the recent flows from this rift which has been releasing lava on and off for years.

Basalt from recent lava flows from the eastern rift on Kiluaea. Hawaii

Basalt from recent lava flows from the eastern rift on Kiluaea. Hawaii The fluid arcing shape in this basalt is characteristic of the slow moving lava, referred to as “pahoehoe” in Hawaiian, which it was formed from. As the cooling rock contracts cracks such as this one form in the newly formed basalt.
Moskowitz-3590 A young ʻōhiʻa lehua (Metrosideros polymorpha) tree has sprouted up and flowered in a crack from a lava flow which is just a few years old.

Kilauea’s Main Crater

Miles to the west of Kilauea’s eastern rift which is releasing the lava flowing into the ocean, the volcano’s main crater is also a spectacular sight, perhaps most magnificent at night when the glow of the pool of lava within it illuminates the steam and smoke rising from the crater.

Moskowitz-3046 Morning light illuminates the eastern sky while stars still shine higher in the sky above the glowing cauldron of Kilauea’s main crater on the big island of Hawaii.
The glow of magma within the crater of Kiluaea lights up the rising smoke as the first hints of dawn begin to light up the night sky. As the daylight grew stronger more of the moonscape surrounding the crater could be seen, the result of lava rising and pouring over the edges of the crater previously.
Moskowitz-3059 The current main crater of Kilauea smokes in the distance, beyond the still steaming floor of the Kiauea Iki crater, the remnants of a volcanic event from the 1950’s in which the foreground crater filled with hundreds of feet of lava.

Dropping into Cove Canyon


While thousands of boaters float down the Colorado River in the Grand Canyon every year, dozens of side canyons branching off the river receive much less attention. During my recent float trip, we explored several technical canyons. Because of the small amount of daylight in late November and December in the Canyon, side trips required an early start and several ended by headlamp in the dark. My favorite side trip was in Cove Canyon which comes into the Colorado around river mile 175. From our camp at the mouth of Cove Canyon six of us departed before first light. A bit over 12 hours later we made our way back into camp after navigating the final plunge pool and rappell via headlamp.

Click here for a gallery of images documenting our approach and descent through this wild slot canyon in the Arizona Desert!


Grand Canyon Wildlife, Birds, and Tracks

Wildlife and signs of wild animals abound along the Colorado River in the Grand Canyon. The silty banks of the river hold the tracks of many species large and small while birds, from tiny canyon wrens to California Condors can be spotted on the water, in the brush or soaring above the canyon walls. Here is a little bit of what I found on my recent float trip down the river.

Animal Tracks in the Grand Canyon

Footprints of a wild animals were abundant along the banks of the Colorado river. Click here to view an entire gallery of images of wildlife tracks I took while on the river along with a few clues on how to tell what they are!

Right front (on the left) and hind tracks of a grey fox. Grand Canyon, Arizona. Click on this image to view a gallery of wildlife track photos from the Grand Canyon.

 Grand Canyon Birds

Though I am not much of a birder I amassed a species list of about 35 birds during my November-December trip down the Canyon. The abundance and diversity of birds definately increased towards the end of the trip. Here are a few I managed to snap a photo of.

A great blue heron takes flight along the Colorado River. Grand Canyon, Arizona. A great blue heron takes flight along the Colorado River. Grand Canyon, Arizona.
_MG_0267 Ross’s x Snow goose hybrid. We saw a single pair on the river. They had probably stopped during their southern fall migration.
Canyon Wrens were one of the most common birds to see or hear along much of the river. Their beatiful lyrical song echoeing off the canyon walls was one of the most amazing sounds on the river. Grand Canyon, Arizona.
A common raven looks out from a perch on a sandstone ledge. Grand Canyon, Arizona.
A first winter white-crowned sparrow. Grand Canyon, Arizona.
Rock wren. Grand Canyon, Arizona.
Patience and careful observation revealed this ruby-crowned kinglet in the brush up a side canyon. Grand Canyon, Arizona. Patience and careful observation revealed this ruby-crowned kinglet in the brush up a side canyon. Grand Canyon, Arizona.

See more of my Bird Photography here!

Grand Canyon Mammals

While footprints revealed the presence of a great many more species of mammals than we actually had live sightings of our party saw bighorn sheep on several occasions and had some notable interactions with ringtails. Perhaps most unusual was the discovery of a ringtail in one of our party’s tent when he retired for the evening!

A bighorn sheep ram foraging along the shore of the Colorado River. Grand Canyon, Arizona.
A group of bighorn sheep ewes in Tuckup Canyon, a tributary to the Colorado River in the Grand Canyon, Arizona.

Check out more of my mammal photography here!

Another Look at Northern Flying Squirrel Tracks

Perhaps because of the forest habitat they occupy and tendency not to travel for long distances on the the ground, clear footprints of the northern flying squirrel (Glaucomys sabrinus) have rarely been detected in the wild, or at least rarely documented. I personally have never definitively identified this species’s tracks in any substrate other than loose snow. As such producing reliable illustrations for the tracks of flying squirrels is challenging. In writing my field guide I had less direct field data on this species than any other mammal species whose tracks are illustrated in the book. The illustrations, measurements and description of northern flying squirrel tracks in Wildlife of the Pacific Northwest are based on the following data sources:

  • Snow tracks found in conjunction with definitive flying squirrel sign, typically the landing mark at the end of a glide.
  • A plaster cast of a number of tracks of a single flying squirrel which was collected for me by Kevin Mack,  at PAWS in Lynwood, WA from a captive female northern flying squirrel which was being rehabilitated for release there.
  • Sketches, notes and photographs I took from study skins of northern flying squirrels from the Mammalogy Collection at the Burke Museum of Natural History and Culture at the University of Washington.
  • Photographs and illustrations of the tracks and signs of this species from other wildlife tracking literature, (all included in the bibliography of my field guide).

In the spring of 2012, while delivering a Tracking Certification with Dr. Mark Elbroch, author of a number of books on wildlife tracks in North America, Mark offered me the feedback that his most recent research on this topic suggests that his original depiction of northern flying squirrel feet in Mammal Tracks: A Guide to North American Species, along with my own are inaccurate. In Mark Elbroch’s most recent book, co-authored with Jonah Evans and Michael Kresky, Field Guide to Animal Tracks and Scats of California, the authors present a revised illustration of the tracks of this species based on their inspection of study skins and footprints collected from sooted track plates. Following this conversation, I revisiting my own original research materials, as well as the literature and made a follow up trip back to the Burke Museum, where I reexamined study skins as well as a fresh specimen which was waiting to be processed.

As Elbroch, Evans, and Kresky depict, northern flying squirrels do have a distinctive, though subtle, anatomical feature in their hind feet which is unique among squirrels in the Pacific Northwest and California. Toe number 5, the outside toe, is longer than is typical for squirrels or other rodents. Inspecting the actual feet of a frozen flying squirrel as well as numerous study skins, this toe, while not quite as long as the central three toes is nearly so, and visually apears in a similar plane to them, while toe 1 is distinctly shorter and falls on a seperate plane. This feature is present in the tracks collected from the sooted track plate which is published in Elbroch, Evans and Kresky. While the only clear tracks in a natural substrate I have been able to examine, those of the captive animal’s which were collected in sand, do not show this characteristic as distinctively as it appears in sooted track plates and on the actual feet themselves, I suspect that it would likely often be apparent in tracks in natural substrates.  This characteristic, not currently illustrated or described in Wildlife of the Pacific Northwest, could be used to distinguish the tracks of this species from the related Douglas (Tamiasciurus douglasii) and red squirrels (Tamiasciurus hudsonicus) which share the Pacific Northwest and much of the rest of North America with northern flying squirrels.

Because there is such limited data on this topic, I have included photographs and sketches from my research for review by others. Similarly, if others have photographs, sketches or access to northern flying squirrel’s I would love to see their material and explore this subject further. Thanks much to Jeff Bradley at the Burke Museum, and the Burke Museum in general, as well as Mark Elbroch for their assistance with this topic.

IMG_0958 The left hind foot of a frozen northern flying squirrel (Glaucomys sabrinus) from the Burke Museum’s Mammalogy Collection. Note that toe 5 is nearly as long as toes 2-4, while toe 1 is distinctly shorter.
Northern Flying Squirrel worked up Rubbings made from a plaster cast of the tracks of a captive northern flying squirrel in sand. Collected by Kevin Mack at PAWS in Lynwood Washington. Various feet are labeled.
Rubbings plus digital overlay copy A digital drawing over the rubbings to help enhance the appearance of the structure of the tracks.
original burke notes Original notes and sketches from my book research on the species from 2009.
Burke Flying Squirrel Notes and Sketches 25APR2012 copy Notes and sketches from my research at the Burke Museum from 2012.


Mount St. Helens Institute Track and Sign Certification

This past weekend the Mount St. Helens Institute, in collaboration with the Mount Adams Institute, hosted a Cybertracker Conservation Track and Sign Certification Event close to the town of Trout Lake in the southern Washington Cascades, a landscape with a diversity of plant communities, striking geography, and bountiful wildlife.

Matt Nelson, Track and Sign Specialist, assisted me in the delivery of the evaluation. Here Matt is leading a discussion around the remains of a mule deer which was killed and butchered by a human hunter and subsequently scavenged by coyotes. Questions around this carcass led to a lengthy and detailed discussion on how to differentiate the patterns of sign left behind around carcasses by other large carnivores such as mountain lions, black bears, and wolves.
Naturalist Dan Daly inspecting a beaver chewed stick along the banks of the Klickitat River. Dan performed impressively and with a score of 98.5, earned his second Level 3 Certification. Nice work Dan!
Matt Nelson photographed me leading a discussion on the identification of a collection of feathers from a Ruffed grouse found on the side of a forest road. David Scott (Track and Sign Specialist) and Casey McFarland (Specialist and Evaluator for Cybertracker Conservation) are the authors of the excellent resource pictured here, Bird Feathers: A Guide to North American Species.
The camber of this primary wing feather is an important clue about the original owner of it. The heavy downward curve in wing weathers is typical for game birds such as Ruffed grouse. This curve helps give them explosive take off power, an important survival trait for ground birds trying to escape terrestrial predators.

Congratulations to everyone who earned a Track and Sign Certification through the Event! For a complete list of certified Trackers in North America click here.

Level 1

Corwin Scott
Hanna D. Gomes
Fred Engelfried

Level 2

Heather Harding
Levi Old

Level 3

Maureen Corlas
Ashley Conley
Daniel P. Daly

Wildlife Tracking in the Tatra Mountains of Slovakia

In late September, the Slovak Wildlife Society hosted a weekend Wildlife Tracking Workshop in Liptovský Mikuláš, a village in the Tatra Mountains of Slovakia. The Slovak Wildlife Society is involved with a range of conservation projects focusing primarily on the region’s large carnivores including working to prevent negative interactions between wolves and bears with humans.

Here are a few of the highlights from my trip to the region and the class with a collection of very fine European naturalists and wildlife trackers.

My initial impressions of northern Slovakia during my train ride through the country was that it reminded me much of the state of Montana, with the notable addition of castles. My initial impressions of northern Slovakia during my train ride through the country was that it reminded me much of the state of Montana, with the notable addition of castles.
Tracks of a European Red deer (Cervus elaphus). Tracks of a European Red deer (Cervus elaphus).
The right hind track of a European Brown Bear (Ursus arctos). The right hind track of a European Brown Bear (Ursus arctos).
European river otter (Lutra lutra) tracks.
European lynx (Lynx lynx) track. Tatra Mountans, Slovakia.
A spring in the forest used extentively by Wild Boar as a wallow. Tatra Mountains, Slovakia
A tree close to a spring wild boar’s use as a wallow. Robin Rigg, Slovak Wildlife Society Founder and Director, inspects the scar and mud on the base of the tree is from repetitive rubbing from boars on the tree. Tatra Mountains, Slovakia.
A red fox moves through the brush in morning light. Tatra Mountains, Slovakia.
Participants in the wildlife tracking workshop Slovak Wildlife Society hosted.
Evening light in the Tatra Mountains, Slovakia.

Making Hay in the Caucasus Mountains of the Republic of Georgia

September is harvest season for folks who live in the Sveneti Region of Georgia’s Caucasus Mountains. The Caucasus Mountains are a land steeped in history and located at a geographic and cultural crossroads of Asia and Europe. Traveling through the remote villages situated among the soaring ridges and peaks of the Caucasus Mountains, felt at points like a trip back in time. This feeling was perhaps most distinct in watching the process of cutting and storing hay which was in full swing during my time in the region.

Three men from the village of Iprali work in concert cutting wild hay in a high elevation meadow in the Sveneti region of the Republic of Georgia.
Careful attention to keeping you blade sharp is required for cutting hay with a scythe. Men will typically sharpen their blade after each row of hay they cut and the distinctive sound of sharpening stones against the metal blades of scythes rung out across many of the mountain valley’s we traversed during our fall travels in the region.
Often, hay is carefully collected into mounds which are left to dry before being hauled back to the village and stored for the winter.
Hay mounds dotted hillsides up and down the mountainsides across much of Sveneti during the fall. Caucasus Mountains, Republic of Georgia.
Hay mounds are eventually collected and loaded onto either trucks or wooden sleds pulled by cattle to be hauled into the village.
Hay being hauled out of the mountains to the village of Ushguli. Sveneti, Republic of Georgia.
A wooden hay sled sits in front of a modern barn built with a traditional design, while two cows rigged for hauling it rest in the shade. Hay is stored in the top while livestock are penned below during the winter. Sveneti, Republic of Georgia.
A massive and growing ravine sits on the edge of a village in Sveneti. Intensive and long term cattle and other livestock production have left many hillsides scared with with such erosion, while thistles and other weedy species that tolerate heavy grazing pressure flourish in much of the range lands in Sveneti.
Part of the welcoming committee for the village of Ushguli. On our walk into the village we were also greeted by a horse, several pigs, and a very large but quite amiable dog. Caucasus Mountains, Republic of Georgia.
The abandoned village of Ghuli sits below the imposing summit of Mount Ushba. While wolves and bears are reported to still roam these mountains, during two weeks of trekking in the region I never saw sign of even a single wild hoofed mammal or any other terrestrial wildlife larger than a fox. Millennia of pastoralism have left a heavy mark on this staggeringly beautiful landscape. Sveneti, Republic of Georgia

Jefferson Land Trust Track and Sign Certification

This past weekend the Jefferson Land Trust hosted a Track and Sign Evaluation in the northeastern section of Washington’s Olympic Peninsula. Jason Lake, instructor for Ceder Root Folk School, volunteered four days of his time to assist in setting up and delivering the Evaluation. The evaluation was held on a combination of Lands owned or under conservation easements managed by the Land Trust and public lands in the area.

Thanks to everyone who participated in the Evaluation and…

Congratulations to the folks who earned certificates:

  • Level 1: Peter Craig, Sarah Spaeth, Isabelle Luna, Rachel Webber
  • Level 2: Lee Corum, Heather Harding, Dustin Ryerson, Nicole Larson
  • Level 3: Erik Kingfisher

For a list of all of the certified trackers in North America click here.


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