The National Weather Service in Duluth caught something odd on their radar on Wednesday, October 16th that they originally thought was a fire.

They then tracked the location of this mass to the Rice Lake National Wildlife Refuge, and got in contact with someone there. It turned out that they were doing a waterfowl survey in that area, and they estimated 600,000 ducks were in the air, causing what they noticed on the radar.

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The Rice Lake National Wildlife Refuge is an 18,208-acre area located in the scenic forest and bog area of northern Minnesota near McGregor. Visitors can enjoy a range of habitats, including lake, river, bog and hardwood forest. They offer hunting, fishing, photography, viewing, and educational outings.

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