UPDATE: The sick eagle rescued on Tuesday from Kaukauna's La Follette Park died Thursday morning. It was very sick and weak when it arrived at the Bay Beach Wildlife Sanctuary, past the point where the staff was able to save him.
If the sanctuary is able to determine the exact cause of the death, it will share the findings.
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A bald eagle was rescued by the Bay Beach Wildlife Sanctuary on Tuesday night in Kaukauna.
The Kaukauna Police Department shared a picture on their Facebook page, saying the bird was first seen in La Follette Park around 11:30 a.m. and appeared to be sick.
Workers from the Bay Beach Wildlife Sanctuary rescued the bird around 7:30 at night. On Wednesday, it was recovering at the Wildlife Sanctuary in Green Bay, but was very weak.
The bird is a healthy weight, so those caring for it think it has some kind of illness.
"At this point, until we get blood work back and can do some more observation with the bird, it's pretty hard to know what the problem is," said Mike Reed, the Director of the Wildlife Sanctuary. "So we're doing supportive care right now."
That care includes giving the eagle fluids and keeping it warm, as it is struggling to keep up its body heat.
The bird is an adult and is at least 5 years old.
At this point, they're not sure when the eagle will be fully recovered.