[**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.

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.”

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.

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!

[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

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

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

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.

[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.

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).

[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.

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

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

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

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

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

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

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

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

[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.

Early August 2020, Carlton County, Minnesota

Estimating numbers of birds coming to your feeder is, of course, an inexact science. But we all know that there are FAR MORE BIRDS using your feeders than you see at anyone time.

The max I saw at my one Carlton County feeder at one time in early August was 9….and they were going through a quart every 48 hours. So by using the two methods below, I was likely hosting between 54 and 64 Rubythroats each day!

TWO METHODS for calculating hummingbirds at a feeder have been derived by hummer experts:

1. Multiply max number you see at one time by 6: This formula was arrived at by banders Nancy Newfield and Bob & Martha Sargent who arrived at this numerical factor after years of banding and color-marking hummers at feeders. Using this formula, I was feeding 54 hummers on any give day in early August.

2. Divide hummingbird nectar ounces consumed per day by 0.25: This “Consumption formula” was devised by North America’s preeminent hummingbird authority, Sheri Williamson, based on years of experience. Sheri arrived at 1/4 oz. per small hummer per day. I was going through 32 ounces in two days, so 16 ounces per day. That calculates to 64 hummers were using my single feeder each day. Crazy!

I have put Sheri’s actual blog post below: “Studies of field metabolic rates (the average rate at which an organism consumes energy as it goes about its daily life) indicate that small hummingbirds such as Black-chinned and Ruby-throated are going to need 45% to 50% of their body weight in sucrose (a.k.a. white sugar, the dominant sugar in the nectar of hummingbird flowers) to get through an ordinary day, so they would actually need 180% to 200% of their weight in a 25% sucrose solution.

A 25% solution is much stronger than most people use in their feeders. The generally recommended proportion is 1 part table sugar to 4 parts water by volume, which comes out to about 18% sugar by weight. Converting to this recipe, it would take approximately 250% to 280% of the bird’s weight in ordinary 1:4 feeder solution to meet each bird’s daily energy requirements.

So, how do you use these data to estimate numbers of feeder visitors? The simplest way is to convert grams to fluid ounces so that you can measure the volume consumed (you can even mark your feeder and estimate usage on the fly).

According to my postal scale, one fluid ounce of 1:4 sugar water weighs about 35.5 grams (approximately 20% more than its plain water counterpart). We’ll average the weight of the birds to 3.5 grams, or about 10% of the weight of a fluid ounce. Multiply that times by 265% for average consumption and we get 0.265 fluid ounce of 1:4 feeder solution per bird per day, which we’ll round down to 1/4 fluid ounce per bird per day. This multiplies out to around 32 smallish hummingbirds per 8 ounces of 1:4 sugar water, 128 per quart, and 512 per gallon. This is higher than the TFFBBB estimate, which is not surprising considering the differences between our figures for weight and consumption rates of the birds and weight/volume ratio of the sugar solution.

Of course, there are a lot of factors that can skew this already crude estimate. The amount of sugar water each bird consumes may be greatly reduced when natural nectar sources are available and greatly increased when the birds are under stress from cold, drought, courtship, fighting, nesting, and/or migration. A given volume will supply the needs of more birds if you make your feeder solution a little stronger than 1:4, as many people (myself included) do in winter and migration, and fewer if you make it a little weaker. Size figures in as well, so a given volume of sugar water will feed fewer Anna’s than Black-chinneds.”

—Sheri Williamson on her blog, Life, Birds, and Everything: Jan. 12, 2008

https://fieldguidetohummingbirds.wordpress.com/2008/01/12/running-the-hummer-numbers/

Accompany Executive Director Sparky Stensaas on this mid July outing in the Sax-Zim Bog

May 27, 2020

Grebe photography from a kayak: Shooting with Sparky

The trip ends with an unfortunate Sparky misadventure. But the day kayaking on Lake Osakis in west central Minnesota starts out beautifully with video of Western Grebes and Red-necked Grebes. Sparky also films diving Forster’s Terns, a Bald Eagle snatching a fish, American White Pelicans in flight, Marsh Wrens and Yellow-headed Blackbirds. [wildlife photography, bird video, wildlife video, Panasonic GH5, Shooting with Sparky episode]

In this week’s installment of Virtually Live in Sax-Zim Bog, Sparky takes us on a fly-over of the little-explored Blue Dasher Bog where he searches for Trumpeter Swans. We also bird Stone Lake Road and Zim Road. Great looks at a gorgeous drake Blue-winged Teal, singing Yellow-rumped Warbler, flapping Sandhill Crane, nest-building Trumpeter Swans and more. Three FOY (first-of-year) species are found including two iconic Sax-Zim Bog breeding birds…LeConte’s Sparrow and Sedge Wren.

[Shot with Panasonic GH5 & Sigma 50-500mm lens (for bird videos); Sony A6500 and Rokinon 12 mm lens (for vlogging); DJI Phantom 4 Pro (drone aerials); Bird sounds recorded with Sennheiser 18″ shotgun microphone and Zoom H4n recorder; Voice sound with Rode Micro mic.]

Hi all, This is video 1 of a series we are doing at my non-profit Friends of Sax-Zim Bog. Since we all have to practice social distancing, we decided to bring our bog buddies along on some “Virtually Live” field trips.

I bird the Sax-Zim Bog (northeastern Minnesota) in the morning from sunrise to noon, then race home (1-hour drive) to download and edit the footage. The goal is to upload it by that evening.

I had a blast! And hope to continue this weekly through May. Come along and enjoy a day of birding in Sax-Zim!

YELLOW RAIL in McGregor Marsh, Aitkin County, Minnesota. June 13, 2019

Okay, so I was home and in my own bed by midnight, but “10:44 pm in the McGregor Marsh” isn’t quite as catchy as the title, “Midnight Madness.”

It has been about 30 years since I’ve actually SEEN a Yellow Rail (one of Kim Eckert’s multi-birder late-night Yellow Rail “round up” in the 80s). 

Yellow Rails are one of the most secretive birds in North America, and only nest in localized sedge marshes in MN, ND, Manitoba, Ontario, Saskatchewan (and a few other isolated spots). Seven were calling last night (June 13). The rails are only the size of a softball, and they walk around under the cattails…usually. A tape of another male, or clicking two rocks together to imitate their call can elicit a vocal response. But they are used to semi-close neighbors so you have to be in the heart of their territory for them to come out from beneath the sedges/cattails.

Thanks to my friend Kim Risen who suggested a place in the Marsh to start listening. He has heard and seen many more in the area this spring/summer. Good year for Yellow Rails! They are dependent on proper water levels.

I waded into the marsh at sunset (about 9:15pm) wearing knee-high rubber boots with rain bibs over the top. One bird was calling just off the trail but quit. The McGregor Marsh is a floating mat of sedges and cattails in ankle- to calf-deep water. Good thing I’d laced myself with Deep Woods Off (25%DEET) since the mosquitos were thick.
This rail was calling on and off (sometimes as close as 6 feet away!) but it took 1.5 hours to actually see him in the sedge marsh (in the full company of mosquito hordes, and stumbling around in waders). A powerful flashlight aided in the search. I would sit in the marsh, click my rocks and wait. If he called, I’d sweep the area briefly with my flashlight. 
It was very dark by 10:30 pm when I started photographing him. This Yellow Rail was so calm that he called, preened, and even tucked his head into his back feathers and slept all within 15 feet of me. I only stayed with him for about 15 minutes.

But it took me 15 minutes more to find my backpack (including my car keys!), which I had left laying in the marsh when I started tracking this Yellow Rail. Home by midnight!

Sony A6500 and Canon 70-200mm f4 lens; f5.6 at 1/60; ISO 1600; pop-up flash and flashlight for illumination.