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Spring arrives on North Saint Vrain Creek

March 20, 2018 by John L. Dengler

This one-minute video homage to Spring was filmed a few days ago while snowshoeing in Rocky Mountain National Park along North Saint Vrain Creek at Copeland Falls. (I suggest that you click the “full screen” button when viewing the video).

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Videos by John L. Dengler

While I had hoped for more snow, the warm sun and blue skies make it clear that Spring had arrived at the Wild Basin area of the park. It won’t be long before the water tumbling over Copeland Falls is visible to the crowds that flock to Rocky Mountain National Park in the summer. Visiting the east side of the the park during the summer has never been a favorite destination for me. I’ve always have preferred the less crowded west side of the park. But in the winter people frequent the park less, particularly once you leave the immediate Bear Lake area.

Snowshoeing is a great winter activity. If you can hike, you can snowshoe. Just dress warm, prepare for changes in the weather, use hiking poles, and pack a snack. If you don’t have equipment, most winter destination towns have sports shops that will inexpensively rent all the equipment and clothes you might need.

Speaking of equipment, while I had packed 25 pounds of camera gear on this day, the above video was made with my six-ounce iPhone. All the shots were handheld, kept steady by using rocks, trees, or simply holding my breath.


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Hanging out with research bald eagle number 24

March 13, 2013 by John L. Dengler

Continuing with my recent post on bald eagle research being conducted on the Chilkat River in the Alaska Chilkat Bald Eagle Preserve, I thought it would be interesting to show a video clip and photos of an eagle that is part of a different research project.

Research bald eagle number 24 is one of three eagles that are part of the research study being conducted by Steve Lewis of the U.S. Fish and Wildlife Service in Juneau, Alaska. The study is examining the effects of eagle nest removal at the Juneau airport (approximately 95 miles away). Number 24 is one of a pair of bald eagles who were nesting near the pond airstrip where float planes land and take off.

A year earlier, I photographed research bald eagle number 88, a control bird in that study. Research bald eagle number 88 originally had a GPS tracking pack, but later lost it. Interestingly, I photographed research bald eagle number 24 very near were I had previously photographed research bald eagle number 88.

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Images of bald eagle number 24

Unlike the eagles I recently photographed that were part of Rachel Wheat‘s study, research bald eagles numbers 24 and 88 have a patagial tag (green wing tag) along with the solar powered GPS tracking satellite transmitter. The transmitter’s antenna can be seen sticking out of the eagle’s feathers to the right of the green patagial tag.


To license video contact me directly. To see our collection of video clips, click here.

Video sampler from the Alaska Chilkat Bald Eagle Preserve

November 16, 2011 by John L. Dengler

Video Gallery

Videos by John L. Dengler

Since I didn’t go out on the river today due to the blizzard, I played around editing some of the video that I shot on the Chilkat River in the Alaska Chilkat Bald Eagle Preserve near Haines, Alaska. It’s by no means finished — it’s basically raw footage. Eventually, I hope to take all the video that I shot and make it into something more polished. In the meantime, I thought you might enjoy some snippets of just a few places to give you a feel for where I am. There’s no sound as I don’t have a way to edit the soundtrack on the iPad. The little editing I did was done on the iPad using iMovie.

I’m new to shooting video with a DSLR. Main lessons learned so far is that I need to use a bubble level and I need to use my bigger tripod when shooting video. I’m really digging my Singh-Ray Variable ND filter for controlling exposure when shooting video. It makes it much easier.

Above video © 2011 John L. Dengler


To license video contact me directly. To see our collection of video clips, click here.

Getting down with bald eagles

January 20, 2011 by John L. Dengler

Bald eagles (Haliaeetus leucocephalus) fight over a salmon carcass along the Chilkat River in the Alaska Chilkat Bald Eagle Preserve near Haines, Alaska. During late fall, bald eagles congregate along the Chilkat River in the Alaska Chilkat Bald Eagle Preserve to feed on salmon in what is believed to be the largest gathering of bald eagles in the world. (John L. Dengler)

I would like to share with you several tips I have found useful when photographing bald eagles at the Alaska Bald Eagle Preserve near Haines.

First, get as low to the ground as possible. In other words, put your camera on the same level as your subject (in this case a pair of fighting bald eagle in the photo above). This does several things. It usually cleans up your background, particularly when shooting with a telephoto lens. It also gives the viewer the same perspective that the bald eagle has making the photo feel more intimate. Sometimes, this means my lens is literally on the ground, requiring that I lay on the frozen ground. To stay warm (and somewhat clean), I’ll use a closed-cell foam backpacking sleeping pad. I like the accordion style as they pack small but are still long. The video below gives you an example of how low to the ground I sometimes set my camera and tripod. It also gives you a sense of the shooting conditions on the river.



Obviously, this position isn’t very good for flight photography. For flight photography, you’ll want to be standing up. In this case, you can use the backpacking sleeping pad to stand on to further insulate the bottom of your boots from snow and the cold ground.

I have found that I need to use a high shutter speed if my goal is to stop bald eagle action (fighting or flight). By high shutter speed, I mean really high — at least 1/1,600 of a second minimum. I’ve had better luck getting useable photos by keeping the shutter speed high, even if it means raising the ISO. Even on a bright sunny day, late fall-early winter light in Alaska is low on the horizon and is not as bright as it seems. Also I set the lens wide open or no more than one f-stop stopped down. This isolates the subject better, plus it helps with keeping the shutter speed high and ISO low.

When shooting birds in flight, pan with the bird before you start shooting and continue to pan while you are shooting and even after you stop shooting. This keeps your lens movement smooth. If your lens has a vibration reduction or image stabilization feature, turn it off if you are shooting above 1/1,000 of a second. Leaving it on slows down your frame rate and can degrade your image quality.

When considering lenses,  set the instant return focus button (if your lens has an instant return focus button) to focus on say a fish carcass on the river bank. Then you can change focus for other activity, but can instantly be back in focus on the fish simply by pressing the return focus button.

Use a remote shutter release when shooting static images like a bald eagle in a tree, or shooting a situation where you are prefocused on a subject in anticipation of action. This allows you to keep a tripod-mounted lens, particularly a telephoto lens, rock steady from movement. One warning — I’ve had the cable that goes from the camera to the remote trigger crack and break at the connector. The normally very pliable cable becomes terribly rigid in the cold conditions that I encounter. To help with this, I will coil the cable so there is less stress on it, and will use a wrapping of Velcro to attach the release to my tripod so the release isn’t swinging about when I move the lens and tripod combo.

I’ve heard that micro-adjusting the focus of your lenses can make a difference in critical focus situations, particularly when using a teleconverter. One of my “housekeeping” projects for the new year is to micro-adjust my lenses. When you micro-adjust your lens you are precisely setting how your specific lens focuses with a specific camera body.

Finally, be aware of your light. Since you can’t ask a bald eagle to move to get in better light, study where light falls through the day. I’ve found different locations on the river where the light is optimum at different times of the day. For example, the magic light time for one of my favorite spots on the Chilkat River is a surprising 11 a.m. to 12:30 p.m. On the other hand, don’t be afraid of bad light either. Sometimes, less than optimal light forces you to approach a photographic situation differently rewarding you with different photographs. The key in these situations is to be aware of what you doing and what the result is going to be in a normally bad light situation.


ABOVE: Bald eagles (Haliaeetus leucocephalus) fight over a salmon carcass along the Chilkat River in the Alaska Chilkat Bald Eagle Preserve near Haines, Alaska. During late fall, bald eagles congregate along the Chilkat River in the Alaska Chilkat Bald Eagle Preserve to feed on salmon in what is believed to be the largest gathering of bald eagles in the world.

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