Mark Birkle:
Red-Shouldered Hawk Juvenile
Mark Birkle:
Turkey Vulture - Raptor Inc.
Mark Birkle:
Turkey Vulture - Raptor Inc.
Mark Birkle:
Portrait of Earl the Female Turkey Vulture
Mark Birkle:
Turkey Vulture - Raptor Inc.
Mark Birkle:
Peregrine Falcon - Female 4
Mark Birkle:
Peregrine Falcon - Female 3
Mark Birkle:
Peregrine Falcon 2
Mark Birkle:
Peregrine Falcon - Femaie 1
Mark Birkle:
American Kestrel - Male 2
Mark Birkle:
American Kestrel 1 - Male
Mark Birkle:
Barred Owl- Little Sleepy
Mark Birkle:
Red-Tailed Hawk 3
Mark Birkle:
Barn Owl 2
Mark Birkle:
Barn Owl 1
Mark Birkle:
Great Horned Owl 3
Mark Birkle:
Great Horned Owl 2
Mark Birkle:
Great Horned Owl 1
Mark Birkle:
Leucistic Red-Tailed Hawk 4
Mark Birkle:
Leucistic Red-Tailed Hawk 3
Mark Birkle:
Leucistic Red-Tailed Hawk 2
Mark Birkle:
Leucistic Red-Tailed Hawk 1
Mark Birkle:
Red-Tailed Hawk 2
Mark Birkle:
Red-Tailed Hawk 1