U. S. Steel Bald Eagle Nest

Irvin & Stella are the current territory holders at the USS nest. Their first nesting season together was 2025 after Stella displaced Claire in the fall of 2024. [image credit: U. S. Steel / Pixcams (with permission)]

U. S. Steel Hatchwatch Clock 2026

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When to begin watching for signs of a hatch at U. S. Steel 2026? Estimated: 3/27, 3/30, 4/2

Before hatch: the Hatchwatch Clock counts UP from the time the egg is laid.
After hatch: the Hatchwatch Clock is reset to track the age of the offspring.

• Bald eagle embryo take 35 days to develop when incubated at 99 degrees.
• The range for hatching is 34-41 days; only rarely would an egg hatch outside of this range.
• Begin to watch for a ‘pip’ in the egg as day 35 approaches.
• First eggs may take a bit longer to hatch than later eggs as they sometimes are not intensely incubated until the arrival of the second egg, the brood patch may also be less well developed, and the initial incubation temperature may be slightly lower.

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Notes

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Irvin and Claire, territory holders at the USS nest 2019-2024, produced and successfully fledged 7 eaglets together. Their first two seasons were documented from ground observations, before a camera was installed. Claire was displaced by Stella in the fall of 2024; Claire made one appearance on the nest after she was displaced and was observed to be in excellent condition. [image credit: U. S. Steel / Pixcams (with permission)]

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Notes

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