Posts tagged ‘winter’

Virtually Live 15 Polar Vortex & The Wolf: Birding Sax-Zim Bog Feb 2021

[**I apologize to all my subscribers…I sometimes forget to post to my thephotonaturalist.com blog. Lately I’ve been posting everything to Facebook, Instagram and other social media, but forget to post here! This is one example. The Polar Vortex has moved on (about TWELVE days being below zero…only a few hours above zero during that entire time!) but I’m just getting around to putting Virtually Live 15 up here. So I promise to pay more attention to this blog in the upcoming year. Thanks!]

Put another log on the fire and enjoy this bitterly cool “Polar Vortex” episode of Virtually Live from Sax-Zim Bog!

Filmed over several days including the morning of February 11 with a record cold Minus-46F start to the day. Yikes!

How do our boreal birds survive this brutal weather? Sparky shares some physiological tricks our feathered fluffballs employ.

Then we flashback to warmer days and snowshoe with Sparky in Yellow-bellied Bog where he discovers an avian excavation. He then flashesback within the flashback to tell the tale of his wolf encounter in the woods.

We also visit the Welcome Center, Admiral Road feeders, Auggie’s Bogwalk at Fringed Gentian to see what birds and mammals are out and about in the below zero temps. I think you will be pleasantly surprised!

Cameos by Boreal Chickadees, Pine Grosbeaks, Northern Hawk Owl, Evening Grosbeak, redpolls and even an Ermine.

Thinking like a Wolf… or just lucky (photos & video)

December 30, 2020

As Executive Director of Friends of Sax-Zim Bog, I sometimes have to run supplies up to the Welcome Center, and on today’s early afternoon jaunt I spotted a Coyote crossing the road a long ways ahead. I pulled over and waited, but I wasn’t too excited since on every trip to Yellowstone we seem to get our fill of “yote photos.”

Timber Wolf in Minnesota’s Sax-Zim Bog: December 30, 2020

I squeaked to try and get it to come back out of the woods. It did, and to my surprise the “Coyote” turned out to be a Timber Wolf! 

I knew from previous experience that they will sometimes parallel roads while hunting, so I pulled ahead slowly and stopped at a game trail that gave me a bit of a window towards the bog. And sure enough, I saw just the back of a wolf quickly move across the trail.

Timber Wolf in Minnesota’s Sax-Zim Bog: December 30, 2020

Now I was getting a bit more confident that I could intercept one of the rarest (or at least rarely seen) of Minnesota’s abundant wildlife. About a half mile up I found a trail I figured it would cross. It was about 15 feet wide and I quietly got out of my van. The woods were silent under the still of last nights 6 inches of snow. 

I walked about a hundred yards in and waited. Sure enough a couple minutes later the wolf appeared! But instead of simply crossing the trail and vanishing, it turned and took a few steps toward me. It couldn’t figure out what I was, which enabled me to get a minute of video and photos. I imagine it was 50 yards away. Amazing experience! Magical experience! You never know what is around any bend in Sax-Zim!

Timber Wolf in Minnesota’s Sax-Zim Bog: December 30, 2020

[Canon R5 with Canon 100-500mm RF lens at 500mm; 1/500 second at f7.1; ISO 1000; handheld]

Video of Timber Wolf Sax-Zim Bog Minnesota

[Canon R5 with Canon 100-500mm RF lens; 1/500 second at f8; ISO 1000; handheld

Timber Wolf in Minnesota’s Sax-Zim Bog: December 30, 2020

[Canon R5 with Canon 100-500mm RF lens at 270mm; 1/500 second at f5.6; ISO 800; handheld]

Timber Wolf in Minnesota’s Sax-Zim Bog: December 30, 2020
Timber Wolf in Minnesota’s Sax-Zim Bog: December 30, 2020

[Canon R5 with Canon 100-500mm RF lens at 270mm; 1/500 second at f7.1; ISO 1000; handheld]

Ghostly Great Horned Owl: Visitor from the Subarctic (video & photos)

December 27, 2020

A few days ago I went to see this pale beauty! Its been on my “owl bucket list” for a long time. Especially gratifying since I searched three times for the subarctic at Springbrook Nature Center in Fridley, Minnesota a few years ago.

Subarctic Great Horned Owl (or west taiga subspecies) along Red River of the North, Clay County, Minnesota: December 27, 2020

[Canon F5 with Canon 100-500mm RF lens at 500mm; 1/640 second at f8; ISO 5000; +1.0ev; tripod]

After a 4 hour drive from our homestead on the Wisconsin border of Minnesota, I arrived on the complete opposite side of the state on the North Dakota border. I had just about an hour before the sun set.

A wildlife photography friend had tipped me off to the location of this stunner. It had been seen on and off for a couple months. But as I began searching the numbers trees in the woods along the Red River of the North I started wondering if I would really find it.

Subarctic Great Horned Owl (or west taiga subspecies) along Red River of the North, Clay County, Minnesota: December 27, 2020

But then there it was! On a tree I thought I had looked at on my way in. Wow! What a pale beauty! The Subarctic (or Western Taiga) subspecies of Great Horned Owl is very pale or even white with black markings. But the disc around the eyes almost always shows some color. They can be mistaken for Snowy Owls if it weren’t for this trait (and of course their feather “horns” which on Snowies are tiny and usually hidden).

Subarctic Great Horned Owl (or west taiga subspecies) along Red River of the North, Clay County, Minnesota: December 27, 2020

[Canon F5 with Canon 100-500mm RF lens at 343mm; 1/400 second at f5.6; ISO 12,800; +0.0ev; tripod]

This boreal subspecies occasionally may mate and nest in northwestern Minnesota. This bird appeared to be a male since it seemed smaller in size. Females are significantly larger than males.

Thanks again to Matt Sorum who found this in Clay County a couple months ago!

Video shows it coughing up a pellet, stretching, fluffing, watching a couple woodpeckers and silhouetted against the full moon.

Subarctic Great Horned Owl (or west taiga subspecies) along Red River of the North, Clay County, Minnesota: December 27, 2020

[Canon F5 with Canon 100-500mm RF lens at 428mm; 1/640 second at f7.1; ISO 4000; +1.0ev; tripod]

Subarctic Great Horned Owl (or west taiga subspecies) along Red River of the North, Clay County, Minnesota: December 27, 2020

[Canon F5 with Canon 100-500mm RF lens at 363mm; 1/640 second at f6.3; ISO 1250; +0.3ev; tripod]

Subarctic Great Horned Owl (or west taiga subspecies) along Red River of the North, Clay County, Minnesota: December 27, 2020

[Canon F5 with Canon 100-500mm RF lens at 500mm; 1/640 second at f7.1; ISO 6400; +1.66ev; tripod]

Subarctic Great Horned Owl (or west taiga subspecies) along Red River of the North, Clay County, Minnesota: December 27, 2020

[Canon F5 with Canon 100-500mm RF lens at 254mm; 1/640 second at f5.6; ISO 5000; +1.66ev; tripod]

Subarctic Great Horned Owl (or west taiga subspecies) along Red River of the North, Clay County, Minnesota: December 27, 2020

[Canon F5 with Canon 100-500mm RF lens at 500mm; 1/320 second at f7.1; ISO 4000; +2.0ev; tripod]

Subarctic Great Horned Owl (or west taiga subspecies) along Red River of the North, Clay County, Minnesota: December 27, 2020

[Canon F5 with Canon 100-500mm RF lens at 500mm; SINGLE FRAME EXTRACTED FROM VIDEO]

Subarctic Great Horned Owl (or west taiga subspecies) along Red River of the North, Clay County, Minnesota: December 27, 2020

[Canon F5 with Canon 100-500mm RF lens at 500mm; SINGLE FRAME EXTRACTED FROM VIDEO]

Subarctic Great Horned Owl (or west taiga subspecies) along Red River of the North, Clay County, Minnesota: December 27, 2020

[Canon F5 with Canon 100-500mm RF lens at 500mm; 1/125 second at f7.1; ISO 12,800; +3.0ev; tripod]

Subarctic Great Horned Owl (or west taiga subspecies) along Red River of the North, Clay County, Minnesota: December 27, 2020

[Canon F5 with Canon 100-500mm RF lens at 500mm; 1/250 second at f7.1; ISO 12,800; +3.0ev; tripod]

HD Video of Subarctic Great Horned Owl

Video shows it coughing up a pellet, stretching, fluffing, watching a couple woodpeckers and silhouetted against the full moon.

Virtually Live 13 Christmas Bird Count Sax-Zim Bog: Great Gray Owl, Fisher, Short-eared Owl Dec 2020

My 35th year as compiler of the Sax-Zim Christmas Bird Count turned out to be a record-breaker despite teams having to social distance. 13 hardy participants brave -10 below zero F windchills in northern Minnesota’s Sax-Zim Bog to turn up 39 species!

We also find a species NEVER recorded on the count before (revealed in the video). And I find several owls and gets some crazy cool images of a Great Gray Owl plummeting and pouncing on suspected vole victims.

We find Boreal Chickadees, accidentally film some Black-billed Magpies at the “Bison Farm,” make a visit to Loretta’s grosbeak-rich feeders and have a yummy lunch at the Wilbert Cafe.

I also share some exciting recent sightings of a Fisher chasing Snowshoe Hare and a Short-eared Owl on Stone Lake Road.

Thanks to all CBC Participants: Bill Tefft, Lori Williams, Frank Nicoletti, Abbie Valine, Dave David Benson, Lars Benson, John Ellis, Sparky Stensaas, Sarah Beaster, Clinton Dexter-Nienhaus, Kristina Dexter-Nienhaus, Tony Anthony Hertzel, Tommy Hertzel

Canada Lynx Jinx Broken!

CANADA LYNX JINX BROKEN! Finally got to watch a Lynx in the daytime!

Canada Lynx Lynx canadensis Sawbill Trail near Hogcreek Road Cook County MN P1033207-2

March 21 in the Superior National Forest of northern Minnesota. (Single frame plucked from video clip).

As I came over a rise, there it was…A Canada Lynx walking right towards me on a remote forest road. It was 9:30 am and sunny. It saw me and bounded off the road and into the 3-foot deep snow. I stayed put thinking that it might come my way via the pine woods. And after a few tense minutes of me second-guessing my intuition, it did!

Their giant oversized paws allow them to float over deep powder snow as they hunt their favorite prey…Snowshoe Hares.

My only other encounter was about 30 years ago while doing owl surveys at night with my friend Dave Benson. That one appeared in our headlights, just sitting in the road. They are very mellow cats, and are rarely in a hurry…Unless in hot pursuit of a hare!


2-minute video (photo is just a single frame from the video).

Watch the video to see it walking over the deep snow (click gear icon on bottom right to change resolution to higher quality).

 

Canada Lynx Lynx canadensis Sawbill Trail near Hogcreek Road Cook County MN P1033207-4

Single frame plucked from video clip

Canada Lynx Lynx canadensis Sawbill Trail near Hogcreek Road Cook County MN P1033207-1

Single frame plucked from video clip

Canada Lynx Lynx canadensis Sawbill Trail near Hogcreek Road Cook County MN P1033207-3

Single frame plucked from video clip

Snowshoe Hare pair…one brown, one white—March 26th; Sax-Zim Bog, Minnesota

Deep in a Black Spruce/Tamarack bog on March 26th I encountered something quite amazing…and entirely new for me—A pair of courting Snowshoe Hares…one already turning brown (though there was about a foot of snow on the ground) and one still mostly white. This was in northeastern Minnesota’s Sax-Zim Bog.

I was just standing quietly and listening for birds, when I caught some motion out of the corner of my eye. It was these two hares chasing each other around the trunk of a spruce! They’d run at each other and then one would leap over the other one, stop momentarily and then continue their cavorting chase. They continued for a couple minutes but then they noticed me and stopped. They froze in position for about 20 minutes, but then again continued their courtship.
Snowshoe Hare pair leaping Warren Nelson Memorial Bog Sax-Zim Bog MN IMG_0725

Cavorting Snowshoe Hares in late March are probably courting. Their color has nothing to do with their sex…Some hares just turn brown earlier than others in spring. But turning brown in late March/early April can be a problem if the snowpack lingers late into April. They become easier to spot by predators such as Canada Lynx and wolves.

[Snowshoe Hare in Minnesota’s Sax-Zim Bog; March 26, 2018]

Snowshoe Hare Warren Nelson Memorial Bog Sax-Zim Bog MN IMG_0865

One hare was farther along in its molt from winter white to summer brown. This change is brought on by increasing day length, and NOT by whether there is snow on the ground or not.

Snowshoe Hare Warren Nelson Memorial Bog Sax-Zim Bog MN IMG_0839

Snowshoe Hares are normally crepuscular (more active at dawn/dusk) and nocturnal and can therefore avoid some diurnal hunters. Lynx and Northern Goshawks (females) are two of their historic predators.

[Snowshoe Hare in Minnesota’s Sax-Zim Bog; March 26, 2018]

Snowshoe Hare Warren Nelson Memorial Bog Sax-Zim Bog MN IMG_0837

Snowshoe Hares tend to be on a 10-year boom-bust cycle, but this is more regular in the heart of their range in Canada and Alaska. Minnesota is at the south end of the range and the cycle here is not as regular.

Snowshoe Hare Warren Nelson Memorial Bog Sax-Zim Bog MN IMG_0836

Freezing in place is a good strategy to avoid being noticed by predators….But they also think they are invisible to this photographer. Every Snowshoe Hare I’ve found in winter has used this method and I’ve been able to slowly get quite close to them.

Snowshoe Hare Warren Nelson Memorial Bog Sax-Zim Bog MN IMG_0833

Hares in winter feed on the inner bark and buds of  shrubs and small trees.

[Snowshoe Hare in Minnesota’s Sax-Zim Bog; March 26, 2018]

Snowshoe Hare Warren Nelson Memorial Bog Sax-Zim Bog MN IMG_0821

Surprisingly, Snowshoe Hares can have between 2 and 5 litters each year! Each litter can be from 1 to 8 leverets (young hares).

Snowshoe Hare Warren Nelson Memorial Bog Sax-Zim Bog MN IMG_0817

White pelage is a big help to Snowshoe Hares in remaining invisible during the snowy season.

Snowshoe Hare Warren Nelson Memorial Bog Sax-Zim Bog MN IMG_0811Snowshoe Hare Warren Nelson Memorial Bog Sax-Zim Bog MN IMG_0801

I love the mix of colors in the pelage of the molting Snowshoe Hare.

[Snowshoe Hare in Minnesota’s Sax-Zim Bog; March 26, 2018]

Snowshoe Hare Warren Nelson Memorial Bog Sax-Zim Bog MN IMG_0788Snowshoe Hare Warren Nelson Memorial Bog Sax-Zim Bog MN IMG_0786Snowshoe Hare Warren Nelson Memorial Bog Sax-Zim Bog MN IMG_0775

It takes about a month for a Snowshoe Hare to turn from white to brown in spring (mostly April) and from brown to white in fall (mostly November).

[Snowshoe Hare in Minnesota’s Sax-Zim Bog; March 26, 2018]

Snowshoe Hare Warren Nelson Memorial Bog Sax-Zim Bog MN IMG_0710-2

[Snowshoe Hare in Minnesota’s Sax-Zim Bog; March 26, 2018]

[**All photos with Canon 7D and Sigma 50-500mm lens]

Hoar Frost Morning—Glacial Ridge National Wildlife Refuge-March 9-10

There were 20 cases of books waiting for me in Pembina, North Dakota. My printer is in Altona, Manitoba and they kindly brought a pallet of books just across the U.S. border so I wouldn’t have to pay duty. And since I was going all the way there, why not do some photography on the way?!

I left Wrenshall at 3:20 am so I could be in far western Minnesota by sunrise. And I made it! Since the radio in the van doesn’t work, podcasts keep me entertained. As I turned off US2 into Glacial Ridge National Wildlife Refuge, I knew it was going to be a spectacular morning. Thick coats of hoarfrost coated everything! Every twig, branch, blade of grass, strand of barbed wire held a coating of thick feathery frost.

Glacial Ridge National Wildlife Refuge was established in 2004 and is Minnesota’s newest addition to the NWR system. It is a vast area, that will eventually encompass 37,000 acres (57 square miles)

It is described by the US Fish and Wildlife Service as “the largest tallgrass prairie and wetland restoration project in U.S. history.” [from wikipedia.com]

 

Conditions were PERFECT for hoarfrost formation….Temperatures at sunrise were near ZERO degrees F and dead calm, and the day before had been above freezing so I imagine moisture from the melting snow provided the “raw material” for spectacular hoarfrost formation.

Here is some info from http://www.wikipedia.org:

“Hoar frost (also hoarfrost, radiation frost, or pruina) refers to white ice crystals deposited on the ground or loosely attached to exposed objects, such as wires or leaves.[4] They form on cold, clear nights when conditions are such that heat radiates out to the open air faster than it can be replaced from nearby sources, such as wind or warm objects. Under suitable circumstances, objects cool to below the frost point[5] of the surrounding air, well below the freezing point of water. Such freezing may be promoted by effects such as flood frost or frost pocket.[6] These occur when ground-level radiation loses cool air until it flows downhill and accumulates in pockets of very cold air in valleys and hollows. Hoar frost may freeze in such low-lying cold air even when the air temperature a few feet above ground is well above freezing.

The word hoar comes from an Old English adjective that means “showing signs of old age”. In this context, it refers to the frost that makes trees and bushes look like white hair.

Hoar frost may have different names depending on where it forms:

  • Air hoar is a deposit of hoar frost on objects above the surface, such as tree branches, plant stems, and wires.”

[Sony A6500 with Sigma 50-500mm f4.5-6.2 OS HSM lens]

Sharp-tailed Grouse in frosty meadow. I ended up seeing 48 Sharp-tails in Glacial Ridge on Saturday.

[Sony A6500 with Sigma 50-500mm f4.5-6.2 OS HSM lens]

 

Hoarfrost on barbed wire fence.

[Sony A6500 with Sigma 50-500mm f4.5-6.2 OS HSM lens]

 

Cottonwoods on the edge of the prairie.

[Sony A6500 with Rokinon 10mm manual lens]

 

Coyote in frosty meadow. I tried squeaking and pishing to bring her closer, and it worked…kind of. She came back towards me, but only within about 200 yards.

A Winter Drive through Carlton County

WHITE ON BLUE
On a sunny but very cold day in late February, I traveled out to western Carlton County in search of a Snowy Owl that had been reported there earlier in the month. I live in the NE corner of Carlton County just south of Duluth, Minnesota. I knew the odds of finding the owl were not in my favor but it was an excuse to see a part of the county I don’t usually traverse. The theme seemed to be “white on blue” with many white birds showing themselves (and a white church!), all on a backdrop of white snow, blue sky and deep blue shadows.

Rough-legged Hawk flying blue sky Finn Road Carlton Co MN IMG_5355A beautiful Rough-legged Hawk flew up from a field along Finn Road.
It was likely hunting voles, their favorite meal. Though they are nearly as large as a Red-tailed Hawk, they have much smaller talons and a relatively tiny beak for grabbing and eating small rodents. Red-tails on the other hand, can easily take large prey such as cottontail rabbits and so need the larger “equipment.”
This individual’s incomplete belly band tells me that this is an adult male…Females and immatures have a broad black belly band.
They nest in the arctic but move south in winter in search of daylight and small rodents. Minnesota is their “Arctic Riviera.”

Snow Bunting flock CR27 Carlton Co MN IMG_5442

Snow Bunting flock CR27 Carlton Co MN IMG_5430

Snow Bunting flock CR27 Carlton Co MN IMG_5460A DRIFT OF SNOW BUNTINGS
Another visitor from the arctic tundra that makes the northern states its winter home is the Snow Bunting. Flocks of these “snowbirds” feed on weed seeds along roads and railroad tracks and in farm fields. This flock was foraging actively but flew every time I tried to get close. This, unfortunately for the photographer, is the norm for this species.

Hoary Redpoll and Common Redpoll flock Carlton Co MN IMG_5410HOARY SURPRISE
Surprising was a lone Hoary Redpoll feeding with a flock of Common Redpolls along a country road. Hoaries and Commons are two more species that breed in the north of Canada and Alaska but winter in northern Minnesota. They are an irruptive species (like the Rough-leg above) which means that they move south in varying numbers from year to year depending on the supply of food in the north…Alder catkins and birch seeds for redpolls, and voles for Rough-legged Hawks. We are thrilled to have so many redpolls this year!
Hoaries are much rarer, averaging 1 for every 100 Commons. Note her (males would have a pinkish breast) very frosty white coloration and tiny cone-shaped bill (compared to the longer sharper bill on the Common behind her.)

Suomalainen Kirkko E.L.K. 1915 Autumba Carlton Co MN IMG_5330

Suomalainen Kirkko E.L.K. 1915 Autumba Carlton Co MN IMG_5335

Suomalainen Kirkko E.L.K. 1915 Autumba Carlton Co MN IMG_5352SUOMALAINEN KIRKKO
This old Finnish Lutheran church (Suomalainen Kirkko = Finnish Church) from 1915 was saved after its doors were closed. It was moved to this location near Hwy 73 and turned into a cultural center. I love the stark white and simple lines of this vernacular architectural gem.

I drove 95 miles and had a great time.
P.S. I did not find the Snowy Owl

Pretty Kitty—Carlton County Bobcat

It is good to have a network of friends, and for many reasons—Friends you shoot with, friends who can give you critique and feedback, and friends who give you tips on wildlife locations. And my buddy Gene helped me with the latter. I think the text said something like “the bobcat came back this morning” This was monumental news! How could he state that so nonchalantly? I called him immediately and was set up on his property in a remote part of Carlton County, Minnesota the next day. A mere 25 minute drive from my house, I got there just after sunrise.
On the way up his long winding drive, a movement caught my eye. A winter-white Snowshoe Hare had hopped a few yards but was now sitting motionless. Too bad the Bobcat hadn’t seen this tasty meal. Witnessing a chase scene would have been a once-in-a-lifetime treat.

Bobcat Lynx rufus Carlton Co MN IMG_3429 1024pxAfter about 45 minutes of sitting quietly, it was an unbelievable thrill when Gene whispered, “Here she comes.” (We’ll call her “she” as her size seems small and features delicate…Plus, what a pretty face!). She cautiously slipped between the hazel brush, slinking her way towards the road-killed deer that Gene had provided.

Bobcat Lynx rufus Carlton Co MN IMG_3390 1024pxSensing her surroundings with acute hearing and smell and vision, she crept closer, occasionally stopping to sit and relax, making sure the coast was clear. In the nearly 3 hours we sat there, she came in about four times, but retreating after a few minutes.

Bobcat Lynx rufus Carlton Co MN IMG_3339 1024pxBobcats have increased in Minnesota over the last few decades. In an article titled “Bountiful Bobcats” in the Minnesota Conservation Volunteer Jan/Feb 2014, the author quotes “From the 1970s up to about 2000, bobcat population numbers were fairly low and stable, according to John Erb, furbearer biologist for the Department of Natural Resources. But starting around 2000, the bobcat population increased rapidly. It grew for about eight years and now appears to be stabilized at about 5,200 in spring and 8,200 in fall. (That’s well above the levels observed from 1977 to 1997—about 1,700 in spring and 2,300 in fall.) Erb and other wildlife managers hope to better understand the causes and potential implications of this bobcat resurgence.” See the entire article here

Snowshoe Hare Gene Letty's homestead CR104 Carlton Co MN IMG_3279Snowshoe Hare that greeted me on my way into Gene’s cabin…A rare sight!

Bobcat Lynx rufus Carlton Co MN IMG_3373 1024pxThe Volunteer article goes on to say, “An adult is roughly 3 feet long including its short, “bobbed” 4- to 7-inch tail. Adult males, or toms, can weigh more than 30 pounds and occasionally over 40. Adult females usually weigh 20 to 25 pounds.”

Bobcat Lynx rufus Carlton Co MN IMG_3414 1024pxWhy are they increasing? John Erb is the MN DNR’s furbearer biologist…”Erb suspects multiple reasons for the recent bobcat population explosion, although he stresses the need for more research to winnow out the causes. One possible factor is the changing climate. Minnesota is at the northern extent of bobcat distribution in North America. Bobcats are less efficient deep-snow predators than are Canada lynx, which have thicker fur, longer legs, and oversized paws.”

“Milder winters might be aiding survival rates, particularly for younger animals,” Erb says. “Female bobcats might also be coming through winter in better condition, so they might be having better reproductive output and survival of kittens.”

“Forest management could also be playing a role. Erb says disturbed and younger forests often provide dense cover and abundant edge habitat, which bobcats and some of their prey prefer. He believes this habitat has expanded due to increased logging that began in the mid-1980s, accelerated in the early 1990s, and continued until recent years. He points to a similar pattern of young forests, plentiful deer, and booming bobcat populations in the 1940s and ’50s, following turn-of-the-century logging, fires, and other forest disturbances.” From the article by Jacob Edson “Bountiful Bobcats” in the Minnesota Conservation Volunteer, Jan/Feb 2014

Bobcat Lynx rufus Carlton Co MN IMG_3376 1024px“Another factor that could be affecting bobcat populations is the increase in deer and turkey populations. Bobcats prey on deer, particularly fawns, and scavenge on dead deer, especially during winter.” Surprisingly, Bobcats are also able to take down adult deer.

Bobcat Lynx rufus Carlton Co MN IMG_3434 1024pxOne researcher has also noted that Fishers are declining in the core Bobcat range in Minnesota. Is it because they are competing for some of the same prey? Bobcats will also kill adult Fishers.

Bobcat Lynx rufus Carlton Co MN IMG_3528 1024pxForested parts of Minnesota may harbor one Bobcat per six to seven square miles. Lynx, which are better adapted to deep snow, replace Bobcats in the Arrowhead region.

Bobcat Lynx rufus Carlton Co MN IMG_3440 1024pxThis fact really surprised me. Did you know that Lynx on average weigh less than Bobcats? They rarely top 25 pounds while Bobcat Toms can top 40 pounds! It is the very long legs and large feet of a Lynx that gives us the impression of a larger animal.

Bobcat Lynx rufus Carlton Co MN IMG_3306 1024px

Bobcat Lynx rufus Carlton Co MN IMG_3530 1024pxFeeding daily on this carcass for nearly a week, she still is cautious when approaching her “prize.”

Bobcat Lynx rufus Carlton Co MN IMG_3422 1024pxI’ll post a video of her in the next blog post.

[Most images shot under low light with heavy overcast skies; Canon 7D with Canon 400mm f5.6 lens; f5.6 at 1/250 second at ISO 1000. Firmly locked on tripod!]

[The two images of the Bobcat actually feeding at the deer carcass were taken at f5.6 at 1/160 second at ISO 1600]

Gray Foxes from 20 Feet! Sax-Zim Bog, Minnesota

Gray Fox pair Welcome Center Owl Ave Sax-Zim Bog MN IMG_3716Twenty years ago, the Gray Fox was rarely seen in the North Woods of Minnesota. But they have now arrived! This is the second and third Gray Fox I have photographed in the Sax-Zim Bog in the last year. The first one I photographed was along the Creek Road in summer of 2013. I had seen something cross the road up ahead, and I thought it might have been a Pine Marten. I stopped the van, got out and gave a few calls on my predator mouth call. Within seconds, a Gray Fox burst out of the woods, looking, presumably, for the source of the call. I got a decent shot, but I was not really prepared. The first proof I had of a Gray Fox in the Sax-Zim Bog was one I “caught” one on my Trail Camera in the winter of 2011-12, very near where these two were photographed.

Gray Fox pair Welcome Center Owl Ave Sax-Zim Bog MN IMG_3770I first became aware that the Sax-Zim Bog Welcome Center feeders were being visited by this rare animal back in December. I found some scat that I couldn’t immediately identify. It was canid-like, but composed of sunflower seed shells and rodent hair. The only winter mammal I know that eats both is the Gray Fox.

Gray Fox pair Welcome Center Owl Ave Sax-Zim Bog MN IMG_3647Then in early February, some visitors got glimpses of a Gray Fox towards dusk. My friend Jason Mandich even managed to photograph one. The next day, our Welcome Center host, Heather-Marie, discovered that there were TWO Gray Fox coming to the feeders. The next afternoon, I was there…Ready and waiting…INSIDE the Welcome Center.

Gray Fox pair Welcome Center Owl Ave Sax-Zim Bog MN IMG_3703Then before 3pm, one arrived! …and then a second! Must be a mated pair as they seemed to get along quite well, feeding under the same feeder for quite a while. We barely breathed as we stood inside the Welcome Center. Then one headed our way, making its path for the feeder closest to the building. I shot through the windows of the Welcome Center, crouching down so I could shoot eye-level to the small fox.

Gray Fox pair Welcome Center Owl Ave Sax-Zim Bog MN IMG_3717FUN GRAY FOX FACTS: These very small canids are about two feet long, plus the 12 to 15 inch long bushy tail. Adults weigh from 8 to 14 pounds…the weight of a large house cat! They are found across the southern and eastern U.S. and south through Mexico, Central America to Columbia and Venezuela in South America.

Gray Fox pair Welcome Center Owl Ave Sax-Zim Bog MN IMG_3755A fox that can climb trees? Yes, the Gray Fox is very adept at climbing tree trunks, either for food or safety.

Gray Fox pair Welcome Center Owl Ave Sax-Zim Bog MN IMG_3751What do they eat? Well, we’ve established that they will eat sunflower seeds (Note this guy’s got a shell on his face). My friend Karl Bardon recently watched on eat for over an hour at his feeder. The scat I found at the Welcome Center is filled with sunflower seed shells and rodent hair. They are also reported to eat Cottontails, newly-dropped White-tailed Deer fawns, mice, voles, fruit and insects.

Gray Fox pair Welcome Center Owl Ave Sax-Zim Bog MN IMG_3710The MN DNR website says that “breeding occurs in late winter, and gestation (time required for the young to develop) is about two months. Litter size averages four, and the young stay with their mother until autumn. Red and Gray Fox do not cross-breed in the wild.”

Gray Fox pair Welcome Center Owl Ave Sax-Zim Bog MN IMG_3700

[ALL IMAGES SHOT THROUGH WINDOW GLASS! Don’t let anyone tell you that you can’t shoot great wildlife shots through your windows. But you need to remember a few things:
1. Make sure your windows are clean! No smudgy kid finger and hand smears. Glass cleaner and crumpled newspaper works great.
2. Shoot straight through the glass…Make sure your lens is perpendicular to the glass. Shooting at an angle through windows often results in lower image quality.
3. Pray your subject is in good light…full morning or late afternoon sun, or high overcast. Deep shade reduces contrast and sun-dappled light makes for difficult exposures.

[all with Canon 7D and Canon 400mm f5.6 lens, Most at ISO 400, f5.6 at 1/640 second, AI Servo AutoFocus mode (to track the moving subjects).]