Roy Lukes: The Fearless Sharp-Shinned Hawk - Door County Pulse
Cooper's hawk The Raptor Center
Identification Dilemma: Cooper's or Sharp-shinned? — 4HAS - Four Harbors Audubon Society
Accipiter Identification
Sharp-shinned Hawk State of Tennessee, Wildlife Resources Agency
Know Your Hawks Mass Audubon – Your Great Outdoors
What's the difference?: Sharp-shinned hawk vs. cooper's hawk
Sharp-Shinned Hawk - Alabama Cooperative Extension System
Cooper's Hawk vs Sharp Shinned Hawk: 5 Differences - AZ Animals
Cooper's and Sharp-Shinned Hawk Identification
Sharpie or Coop? Urban Raptor Conservancy
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ID Tips: Cooper's Hawk vs. Sharp-shinned Hawk
Sharp-shinned Hawk - eBird
ID Challenge: Cooper's Hawk vs Sharp-Shinned Hawk - Birds and Blooms