Every lambing season, golden eagles cost western ranchers thousands of animals and millions of dollars. There's a legal, non-lethal solution — and it works.
According to USDA NASS annual loss surveys, golden eagles consistently rank among the top three predators of sheep and lambs in Wyoming, Colorado, Utah, and Idaho. During lambing season — when newborns are most vulnerable — a single hunting eagle can decimate a flock over weeks.
Rancher James Curutchet of Johnson County, Wyoming watched his flock drop from 350 to 193 sheep in just two months. Tommy Moore of the same county lost his lamb crop from roughly 200 down to about 25 in a single season — an 87.5% mortality rate he attributed directly to golden eagles.
Eagles are federally protected under the Migratory Bird Treaty Act and the Bald and Golden Eagle Protection Act. You cannot shoot, trap, or poison them. But you have powerful, legal options.
"I started with 200 lambs and ended with about 25. I'd watch eagles just circling all day, every day. You feel completely helpless."
— Tommy Moore, Johnson County, Wyoming (2018)"My flock dropped from 350 to 193 in two months. Something had to change."
— James Curutchet, Johnson County, Wyoming (2020)Golden eagles, not bald eagles, are responsible for the vast majority of depredation incidents. They are highly intelligent ambush hunters that quickly learn when and where lambing occurs on your property.
Newborn lambs weigh 6–12 lbs and are helpless for their first 2–4 weeks. Eagles actively seek lambing areas and can strike multiple animals per day. A single territorial pair can wipe out a season's crop.
Open rangeland and high-elevation summer pastures in Wyoming, Colorado, Utah, Montana, and Idaho see the most incidents. Eagles use ridgelines and thermals to hunt efficiently across large areas.
Eagles are protected under the Migratory Bird Treaty Act and the Bald and Golden Eagle Protection Act. Lethal control requires a federal depredation permit — a long, uncertain process that rarely results in approval.
Golden eagle populations in the western U.S. have remained stable to increasing in recent decades. In areas with dense prey populations, territorial pairs will defend the same territory — and the same ranch — year after year.
Colorado ranchers reported $8.81M in total predator losses on 37,000 head in a single year. Utah logged 14,100 head lost to predators in 2024. Eagle losses are rarely covered by standard livestock insurance.
Licensed falconers use trained raptors — typically large falcons or Harris's Hawks — to harass, displace, and condition wild eagles to avoid your property. Because disturbing eagles can constitute "take" under the Bald and Golden Eagle Protection Act, non-lethal hazing should be coordinated with USDA Wildlife Services. It harms no eagles and leverages natural predator behavior.
A licensed falconer visits your ranch before or at the start of lambing season to assess terrain, identify eagle territories, and establish a patrol schedule. Timing is everything — early intervention before eagles establish a hunting pattern is most effective.
The falconer flies trained birds over vulnerable pastures during peak eagle activity hours — typically morning and late afternoon. The presence of an aggressive, larger falcon is enough to drive golden eagles off territory without physical contact.
With consistent daily patrols over 1–3 weeks, wild eagles learn that your property is defended. They shift territories. This "conditioned avoidance" effect can persist through an entire lambing season and often into subsequent years.
A good falconer will help you document every incident — dates, number of animals threatened, eagle sightings, and hazing events. This log is essential if you ever pursue a USDA Form 37 damage claim or an eagle removal permit.
The most effective programs run for the full lambing season, often 6–10 weeks. Some ranchers contract the same falconer year after year, with patrols starting earlier each season as eagle patterns are better understood.
In the wild, golden eagles are driven off by larger or more aggressive raptors. A trained gyrfalcon or peregrine operating in tandem with a skilled falconer exploits this instinct. The eagle perceives the area as defended territory and moves on.
Unlike pyrotechnics, guard animals, or scarecrows — which eagles quickly habituate to — live raptor patrols deliver an unpredictable, dynamic threat that stays effective throughout the season.
Disturbing eagles can be "take" under the Eagle Act — coordinate non-lethal hazing with USDA Wildlife Services.
Purely behavioral — displacement only, zero physical contact.
Wild eagles don't habituate to live raptor threats the way they do to deterrents.
Falconers help you build a damage record for permit applications.
Patrols go where you need them — lambing sheds, open pastures, ridgelines.
Saving even 10–20 lambs per season typically covers the full contract cost.
Falconry in the United States is one of the most regulated wildlife practices in existence. A licensed falconer must:
A Master Falconer with abatement experience has typically spent 7+ years working with birds before contracting commercially. They understand raptor behavior, territory dynamics, and how to read a hunting eagle's patterns better than almost anyone.
Falconers can assist with the documentation process and often work alongside USDA Wildlife Services when a removal permit is sought.
These are sourced incidents and figures — including estimated losses from USDA NASS producer surveys. Every row links to a USDA report, peer-reviewed paper, or news account. If your operation looks like any of these, you're not alone.
Golden Eagles are the dominant predator threat to livestock.
| Year | State | Losses Documented | Eagle Species | Status | Source |
|---|---|---|---|---|---|
| 2024 | Wyoming | 3,400 head | Golden + Bald Eagles | Estimated (USDA NASS survey data) | USDA NASS 2024 |
| 2023 | Wyoming | 21,300 head (all predators) | Eagles — 3rd largest category | Estimated (USDA NASS survey data) | USDA NASS WY 2023 PDF |
| 2023 | Colorado | 18,600 head / $8.81M loss | All predators (eagles included) | Estimated (USDA NASS survey data) | USDA NASS CO 2023 PDF |
| 2024 | Utah | 14,100 head | All predators (eagles included) | Estimated (USDA NASS survey data) | USDA NASS UT 2024 PDF |
| 2020 | Wyoming — Johnson Co. | 157 sheep (350 → 193) | Golden Eagle | Confirmed | Wyoming News |
| 2018 | Wyoming — Johnson Co. | 175 lambs (87.5% mortality) | Golden Eagle | Confirmed | Gillette News Record |
| 2024–25 | Montana — Glacier Co. | 3 calves confirmed | Golden Eagle | Confirmed | Northern Ag Network |
| 1978 | Montana (Multi-county) | Foundational study | Golden Eagle | Historical | O'Gara 1978 — Peer Reviewed |
Data sourced from USDA NASS annual loss reports, USDA APHIS Wildlife Services, peer-reviewed research, and documented rancher accounts. All links go directly to primary sources.
When you put the numbers next to each other, falconry abatement is not a cost — it's insurance. A market lamb in the West runs $180–$280 at sale. Saving even 10–15 lambs in a season covers a typical abatement contract.
At $230 average market value per lamb, losing 50 lambs in a season is an $11,500 loss. Losing 150 is $34,500. These are not hypotheticals — they're the numbers ranchers in Wyoming and Colorado have reported to USDA.
Request itemized proposals from licensed abatement falconers. Many will work on a day-rate or seasonal contract. The earlier in your lambing season you engage them, the lower the total loss.
| Method | Effectiveness | Eagle Habituation Risk | Cost | Best For |
|---|---|---|---|---|
| Falconry Abatement | High | Very Low | Moderate (seasonal contract) | Active lambing areas, open pasture |
| Guard Animals (LGDs) | Moderate | Low | Low (ongoing) | Ground predators; limited eagle deterrence |
| Pyrotechnics / Noisemakers | Low–Moderate | High (within days) | Low | Initial scare only |
| Effigy Eagles / Scarecrows | Very Low | Very High | Very Low | Short-term novelty only |
| Shed Lambing (confinement) | High | N/A | High (infrastructure) | Newborns — first 2 weeks only |
| USDA Lethal Removal | High (when approved) | N/A | High (time, permits) | Last resort — multi-year documentation required |
These are the verified government contacts for eagle depredation assistance. They can investigate your losses, file damage reports, and connect you with licensed falconers in your area.
The North American Falconers Association (NAFA) maintains a directory of licensed Master and General falconers by state, many of whom offer commercial abatement services. Your state's falconry club is also an excellent local resource.
When evaluating a falconer for abatement work, ask for: their federal falconry permit number, their state license, prior abatement references from ranchers, and their specific experience with golden eagle displacement in open terrain.
Document your losses. Call USDA Wildlife Services. Hire a licensed falconer. The tools exist — you just have to use them.