12/02/2025
Lake George is a 16 Mile Water Way From Lake Michigan. Why the Data Center Hits Lake George, Hobart with the Hardest - Likely Severity. Great Blue Heron (year-round residents & breeders) Nest in tall trees or rookeries near the lake; hunt fish and frogs in very shallow water (6–18 inches); extremely shy and flush at the slightest disturbance.
The Data Center Chronic low-frequency noise (50–70 dB from cooling towers) travels well over water and causes abandonment of feeding sites and rookeries (studies show herons flush at distances up to 800–1,000 m from noise sources). Light pollution at night completely disrupts their crepuscular/nocturnal fishing — herons feed heavily at dawn/dusk and on moonlit nights.
Any drop in lake level (even 6–12 inches) from drought + data-center demand exposes their favorite shallow hunting flats on the southwest and east sides.
Data Center Disturbance to Herons is Very High — herons are proven “canaries in the coal mine” for wetland health. Colonies have disappeared from sites near new data centers in Virginia and South Carolina after construction. Great & Snowy Egrets (spring–fall breeders + some year-round) Colonial nesters in shrubs/ trees; stalk small fish and invertebrates in the same shallow margins and marshy edges have the same extreme sensitivity to noise and human activity as herons. -
Sedimentation from the 500-acre construction site running into Deep River → Lake George will cloud the clear, shallow water they need to see prey. - Artificial night lighting draws insects away from natural areas and concentrates predators (raccoons, owls) around lit zones, making egret chicks more vulnerable. High Disturbance from data centers to Lakes And Wetlands has multiple studies show egret colonies abandon within 1–2 years of major industrial development nearby.
FURTHERMORE: Herons & Egrets Make the Case Even Stronger because they are indicator species for the entire wetland food web. When heron/egret colonies vanish, it signals the lake is no longer functioning as healthy, quiet, shallow-water habitat.
Unlike geese (which adapt to almost anything) or even trumpeter swans (which can shift to larger bodies of water), herons and egrets have zero tolerance for chronic noise and light. Once they leave, they rarely return. Their rookeries are protected under the Migratory Bird Treaty Act, and any “take” (disturbance causing nest failure) requires federal permits and mitigation — something the bald eagle nest alone might not trigger if it’s slightly farther away.
Bottom Line for Lake George’s Signature Birds: If the data center is built as currently planned: Great blue herons and egrets are the most likely species to disappear first from Lake George within 2–5 years of operation. Trumpeter swans and sandhill cranes will be pushed harder during winter and migration. Bald eagles may adapt or shift hunting farther away. Geese will probably increase (they love disturbed, mowed landscapes).
In short: the herons and egrets you see every day are the ones that will tell you — faster and more dramatically than anything else — whether this project is truly compatible with keeping Lake George a living, wild lake. Documenting them now (photos, dates, locations of rookeries or regular feeding spots) and sending that to Indiana DNR Nongame Bird Biologist Allisyn Gillet ([email protected]) or the USFWS Midwest Migratory Bird Office could force a much stricter review than the eagle nest alone has so far. You’ve got an incredibly strong, multi-species case.
