Drone Surveying of Some Local DU Projects

Andrew L.

Well-known member
Recently had the pleasure of touring some DU projects in Southwest Minnesota along with one of our conservation partners, Fox Lake Conservation League, who graciously allowed the use of their drone for the day. We have had very heavy rains in this part of the state since late April. In fact, right now is a good showing of how many wetlands used to be in this part of the world as nearly all fields have some sort of standing water. Most do not think of this area when they think Prairie Pothole Region but it used to be littered with great duck habitat just like the Dakotas. In fact, some early transcripts from Jackson county say that settlers could not go more than 1/4 of a mile without having to go around some sort of wetland.
Happy to report that great progress is being made in this area in terms of restoration and the drone photos help show a little justice for the cause. Breeding pairs and a number of waterfowl species were seen at each property so lets hope MN can pull its weight a little more with the rest of prairies much drier.

Here is a WMA with a water control structure and fish barrier (bottom left) that DU installed in recent years. This helps keep out invasive carp and allows for a draw down rotation to promote a healthy wetland. Despite the heavy rains there still appeared to be good submerged vegetation.
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This is another overhead shot of a different WMA again showing some decent vegetation.
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On that same WMA looking west DU just acquired some ground that the wetlands will be restored on. You can see some of the property that is currently in CRP, green area, and just beyond that will be restored back to native prairie and wetlands. In background you can see how wet some of the nearby fields are.
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This next WMA was a huge surprise in terms of numbers of pockets of water when we saw it from above. A duck hunters paradise in my books. Hard to imagine this is what all of southern MN and the prairies used to look like. A few swans in the center were big enough to show up.
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Same property but from a different angle.
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Hope you enjoyed some shots from the ducks point of view. I will try and post again later this fall when we can hopefully do some more flights once water has receded.
 
Andrew, very interesting. Your post causes me wonder if the USF&WS will begin to use drones to gather data used in their annual surveys. Or perhaps they already are. Seems like an ideal tool.
 
Eric,

It is very interesting in what these can be used for and who will use them. One huge downfall is battery life. This is a solid drone ($3500+ cost) and with a moderate wind we only got 15-20 minutes out of one battery. In between areas we would charge batteries in the truck and needed to rotate 3 batteries during the day.
 
Beautiful pics, what a great view of those wetlands. Almost makes me miss the Midwest thinking about hunting those potholes in that last pic.
 
Some of our wetland managers in West TN are using them to scout for beaver dams that are causing flooding so they know where to go to remove them. Much of this ground is nearly impassable, especially once the beavers have their way with it.
 
Eric

Drones are unlikely unless we get military grade drones. Current regs require line of sight control and a 400 ft max elevation. That said we are working on remote sensing technology that would get our planes higher and counts automated but that's years off. Still in the R&D phase.
 
Thanks, Brad, for the update. Actually, repurposing US military drones would be a great approach. Whether the U.S. military has any conduits in place that enable them to release them to "civilian" U.S. Governmental agencies is likely the most important question to ask, as a former USFWS biologist.
 
RL

As you know there are programs for excessing surplus government equipment. I have seen any drones come up on the list yet. I know a few non military but home land security agencies have access to drones. Obviously they must have experienced operators as well. When it comes about I know I will be sad that the surveys are done from a desk in a government building looking at a computer screen instead of from a plane or truck.
 
Yes, accessing "conduits" existence for U.S military equipment exist, whether they are feasible avenues for obtaining high priority equipment like drones is likely the larger issue.

Andrew, as my NoDak friends like to state: Yes, we have a lot of Minnesota residents who hunt our state routinely for waterfowl, since they destroyed most of their own wetland complexes.
 
Andrew, what you are doing is VERY worthwhile. After hunting waterfowl in NoDak for fourteen years, the rate of progression of wetland destruction is quite evident.
 
Eric

Drones are unlikely unless we get military grade drones. Current regs require line of sight control and a 400 ft max elevation. That said we are working on remote sensing technology that would get our planes higher and counts automated but that's years off. Still in the R&D phase.


Certainly it is fair to say the survey methodologies must to stay the same so that each year's counts are comparable with the rest. I can see using historical survey techniques annually is needed for year-to-year data collection consistency and that would make introducing new technologies very challenging, even if they increase accuracy.
 
Andrew, I sure enjoyed this. Brought me back to the 1950s when I began my duck hunting in the PPR. What towns are in this area where the photographs were taken. Once again I was darn near mesmerized by all that water!
Al
 
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