Iris The Osprey Perches Near Nest As Fall Migration Approaches – Aug. 18, 2025

Iris made a morning visit to the Hellgate Osprey Cam, offering a stunning close-up as she perched near the nest. With September just around the corner, there’s likely only 2–3 weeks left before Iris and the other Ospreys around Missoula, Montana, begin their journeys southward for fall migration to warmer tropical climates.

Watch live with updates, tweets, and highlights at

http://AllAboutBirds.org/ospreys

Watch the cam and learn about the Montana Osprey Project at

http://hs.umt.edu/osprey/

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This Osprey nest is at the mouth of the spectacular Hellgate Canyon at the edge of Missoula, Montana. It’s in a very busy location, right outside the Riverside Health Care Center and next to busy parking lots, a construction site, a busy highway, and a railroad. However, it’s also an ideal location in many ways, since these Ospreys have riverfront property only about 50 feet from the Clark Fork River. Being so close to people does not bother them, and hundreds of people enjoy watching them every day.

The female Osprey at this nest is called Iris because she has very distinctive spots on her iris, especially in her left eye. These iris patterns serve as individual barcodes and allow us to identify her. She has nested at this site for many years. Her mate of many years, Stanley, did not return in 2016, and she attempted to breed with a new male dubbed "Louis" after an influential local Salish elder named Louis Adams (for more info: http://missoulian.com/news/local/new-...)

After a single year of successful breeding with Louis in 2018, Iris went through several years of unsuccessful attempts as Louis paired up with another female a little downriver. Then, in 2024 a new male showed up (later christened "Finnegan" by viewers) who successfully paired with Iris and began a new breeding season.

Ospreys are consummate fishing birds, and this pair fishes primarily from the Clark Fork River and nearby Rattlesnake Creek. They use their 6–7 foot wingspans to soar above the water, looking for fish, then diving as deep as 3 feet for shallow-swimming prey. Adult Ospreys usually weigh 3–4 pounds, and they can carry prey up to 50 percent of their own weight. Ospreys can live up to 25 years, and they typically lay 1–4 eggs in a clutch.

The nest used to be on a power pole about 200 feet west of where it is now. This was dangerous, since the Ospreys could have been electrocuted, causing fires and power blackouts. In 2007, the current nest platform was erected to provide a safer place for the Ospreys to nest. They took to it immediately. Getting the new nest platform set up, and installing and running to high resolution camera for this feed for you to enjoy has been a large effort involving many groups: Riverside Health Care Center, Karen Wagner, Kate Davis and Raptors of the Rockies, Northwestern Energy, Dave Taylor Roofing Company, and Dr. Erick Greene of the University of Montana.

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