Do Ducks See Color – Last Saturday, we took some time to visit one of my favorite places, Horicon Marsh near Waupun. It was a beautiful day except for the mosquitoes. I was looking for a flight, and this trip did not disappoint. This place has a nice boardwalk where you can walk through the swamp and watch the wildlife. We saw a variety of birds, a few turtles, and a water rat (maybe a muskrat, but it was too far to tell).
The tern of this ward is cold here, but when they see something to eat, they nose down into the water.
Do Ducks See Color
At this point, we leave the road … and then there are geese. many geese. The parents were a little afraid of us and there was a lot of noise, but we got through the crowd unscathed.
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Considering February 1st was 12 days ago, I thought I’d better get the photos you took that day! It was a little warmer than January 1st, I think it was around 12 degrees when I took the picture, and sunny. Sun and snow make the picture very bright.
You can see my little friend is still here! They are happy, just hanging out in the snow like it’s no big deal.
I’ve been posting pictures of the river near my house once a month for a year to keep up with the changing seasons. Before I post the picture, I have to edit it because the background turned out to be too blue.
I go through an internal struggle with photo editing because I want You to be a beautiful photo that comes out of the camera. As you can see in the picture below, this is not the case, and the correction is necessary. After writing in the beginning, I was not satisfied with the color. I’m also a bit confused because I don’t have a program to open raw files.
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I started a free trial of some photo editing software and I’m happy. More with results. Below is a side by side comparison of the original jpeg, the modified jpeg, and the modified raw file. My favorite is the last picture of the duck. You can see the real color of mallards. It’s one of my favorite things about living here.
Big* version of final edit: *Google says “big” isn’t a word, but I’ve been using it for years.
For Christmas, I got a new camera. It was my first digital SLR camera. It’s more technical than any part and picture I own, but the picture quality is better. Still, I have a lot to learn about cameras and photography.
To see how my skills develop over the next year, I decided that I would like to take the same photo once a month. We live by the river, so I decided to use the bridge over the river as the centerpiece. I was worried about taking these photos in handheld mode, so I did. Give them in the form of “P”. After looking at the pictures once I got home, I wish I’d used Time to adjust the settings in manual mode. The photos turned out too blue, so I made some adjustments to “warm” them up a bit
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On January 1, 2014, the temperature was 7 degrees, the weather was cool, and the time was around 4:00.
I showed some of the inhabitants of the river. While they are still here, at least. If you spend a day hunting waterfowl, you will quickly learn that their eyesight is second to none. They can pick out even the most hidden blinds, make smoother moves, and have the ability to spot and land a single duck instead of tricking several.
Cones and Rods Cones and rods are photoreceptors in the eye. The cones allow you to see color and see during the day, and the rods are the receptors that allow you to see in low light. Humans have three types of cones, and these give us the ability to see the red, green and blue spectrum. But waterfowl and many other birds have a fourth type of cone, which allows them to see in the ultraviolet range. So instead of just seeing red, green, blue, and variations of those three, ducks see four primary colors that we can’t see.
I talked about ultraviolet vision with Dr. Lewis Oring, a famous ecologist who studied various birds.
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“Almost all birds have UV vision, we know, but nobody has done anything definitive about how they use it,” Oring said. “There’s no doubt they see things we don’t. It always fascinates me. When I look at the birds of paradise in New Guinea, I’m sure they can see the UV light shining through. What looks black to me is very different. to them.”
UV vision isn’t the only advantage ducks have over humans. “They also have high-density logs that allow them to see when,” Oring said at night.
And the benefits of bird vision don’t end there. In addition to a wide range of light visibility and excellent low-light visibility, they have other advantages.
Vision Series I pulled out all the stops to better understand waterfowl vision, so I called Dr. Mike Brasher of Ducks Unlimited. Brasher described a variety of bird eye physiology, but one thing that stuck out to me was the eyes.
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“There was an ecological study in waterfowl that looked at the different feeding patterns of 12 different species, and how that would shape the morphology of the eyes,” Brasher said. “The research didn’t find much, but they found that all creatures have corneal nerves that give them high vision in specific areas of their vision. It enables these birds to explore the horizon with that part of their eyes that gives them vision. , almost like The Eye of Mordor.”
Hindsight is 20/20, but I have many stories from hunting that make a lot of sense with these details in mind. For example, I have many hunts in rain or fog where the hide is good and the decoy looks good, but the geese or ducks seem to hit an invisible wall where they sense something is wrong. I have never understood what it is, but the only moment of clarity of his eyes would be an easy way to describe this terrible hunt.
How does it affect behavior? Although we know the condition of ducks’ eyes, how they use their eyes I understand. There is very little research on vision in waterfowl specifically, but some of the research that does exist is surprising.
“There is research on UV light and sand dunes. The sand dunes in the Platte River are exposed to power lines, and most of them occur at night,” Brasher said. “They used ultraviolet light to illuminate the problem area of the power line and saw a 98% reduction in friction.
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This particular study is more than just an interesting demonstration of UV vision in waterfowl to me. It shows how little we understand about what we cannot see and experience ourselves. If ultraviolet light “shining” on thin wires can help cranes travel safely at night, what other behavioral effects are we not investigating? How does a new plant cut in a blind pattern look in ultraviolet next to old corn? What happens if you expose the curtain to ultraviolet light or intentionally put an ultraviolet shade on the curtain? Do we need the detailed color scheme we see in RGB to be in ultraviolet? The sky is the limit.
What we do not know I have tried my best to find studies on the vision of waterfowl and its effect on their behavior, but the research is not there. Both Brasher and Oring confirmed that it was not a priority.
“We have evolved over the last 40 years to study the ecology of birds in their habitat and the habitat itself, beyond a physiological basis,” Brasher said. “Residential research has yielded many benefits.”
Dr. Brasher was right. Understanding the habitats that waterfowl need to live is essential to good management practices. The importance of preserving our wetlands is undisputed, but I can’t help but wonder: Are there other opportunities for better waterfowl management?
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Dr. Oring saw an opportunity for other scientists to make a difference. “When I was doing research on birds of paradise, it was immediately obvious that a good student could make a name for himself by doing something complete about UV vision,” Oring said.
Access the latest MeatEater seasons, save content and participate in conversations with the staff and others in the MeatEater community. Most species of ducks have colorless wings called specula (singular: speculum). These fireflies are
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