gyrf-pefa comparison
IWRC Raptor ID Series
       
Gyrfalcon
  
Peregrine Falcon
 
       
  Adults          
 
gray head
less defined malar mark
 
black head
well defined malar mark
  
             
 
barring not uniform
on underwings
(primaries, secondaries or coverts may differ in darkness)

(photo needed)
 
uniformly barred underwing
 
             
 
wingtips shorter than tail
 
Tears profile
wingtips reach tip of tail
  
             
             
  Juveniles          
 
 
(photo needed)
 
 
   
   
 
 
 
  Gyrfalcon Main Page          
  :Peregrine Falcon Main Page        
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International Wildlife Rehabilitation Council