Blake Matheson:
Strix occidentalis
Blake Matheson:
Ninox Mindorensis
Blake Matheson:
Glaucidium gnoma
Blake Matheson:
Aegolius acadicus
Blake Matheson:
Strix Nebulosa II
Blake Matheson:
Strix nebulosa
Blake Matheson:
Strix Varia
Blake Matheson:
Strix Varia II
Blake Matheson:
Bubo virginianus
Blake Matheson:
Bubo scandiacus
Blake Matheson:
Asio flammeus
Blake Matheson:
Asio flammeus
Blake Matheson:
Glaucidium perlatum
Blake Matheson:
Glaucidium perlatum
Blake Matheson:
Glaucidium perlatum
Blake Matheson:
Glaucidium perlatum
Blake Matheson:
Glaucidium perlatum
Blake Matheson:
Aegolius acadicus
Blake Matheson:
Noswow2bw
Blake Matheson:
Aegolius acadicus
Blake Matheson:
Bubo virginianus
Blake Matheson:
Bubo virginianus
Blake Matheson:
Athene cunicularia