Eagle Migration & Depredation Map

Interactive visualization of golden eagle migration corridors and livestock depredation hotspots across North America. Toggle layers to explore migration patterns, wintering grounds, and regions where eagles have been killing sheep and livestock.

📊 Map Legend

Migration Corridors

Western Population Route (Pacific Coast → Alaska)
Rocky Mountain Corridor (Most Used)
Eastern Population Route (Appalachia → Canada)

Depredation Heat Map

Critical (3,200+ sheep/year, 338+ ranches affected)
High (Documented depredation, multiple incidents)
Moderate (Occasional incidents reported)
Low (Within migration corridor)

Incident Markers

Confirmed major depredation event
Migration hotspot (high concentration)

Western Migration Corridor

  • Route: BC → Montana → Mexico
  • Spring: March 4 - May 15
  • Peak: Mid-April
  • Breeding: Alaska, Yukon
  • Wintering: Mountain West

Eastern Migration Corridor

  • Route: Appalachia → Canada
  • Spring: Feb 4 - April 13
  • Breeding: Northeast Canada
  • Wintering: Appalachian Region
  • Population: Smaller, less documented

Top Depredation States

  • Texas: 338 ranches affected
  • Wyoming: 3,200+ sheep (2020)
  • Montana: $48K losses (historical)
  • Colorado: Documented losses
  • Utah: Multiple incidents

Winter Distribution

  • Throughout continental US
  • Concentrated in: West, Midwest, South
  • Prefer areas with less snow
  • Proximity to prey (livestock)
  • Temperature moderation