Great Horned Owl (Bubo virginianus)

Great Horned Owl (Bubo virginianus)

About Great Horned Owl (Bubo virginianus)

Kingdom: Animals
Phylum: Chordates
Class: Birds
Order: Owls And Nightjars
Family: Typical Owls

Bubo virginianus preys on:
Microtus
Corvus
Tamiasciurus hudsonicus
Evolomys
Bonasa umbellus
Colaptes auratus
Lepus americanus
Clethrionomys
Spermophilus franklinii
Empidonax minimus
Icterus galbula
Pheucticus ludovicianus
Catharus fuscescens
Poecile atricapillus
Leporidae
Fulica americana
Microtus ochrogaster
Geomyidae
Spermophilus
Sciurognathi
Peromyscus
Tamias
Neotoma
Dipodomys
Sylvilagus
Ondatra zibethicus
Peromyscus maniculatus
Mustelinae
Podilymbus podiceps
Egretta thula
Aix sponsa
Parabuteo unicinctus
Pandion haliaetus
Larus californicus
Tyto alba
Surnia ulula
Micrathene whitneyi
Strix varia
Asio flammeus
Corvus corax
Nucifraga columbiana
Tamias merriami
Thomomys talpoides
Microtus longicaudus
Microtus californicus
Neotoma lepida
Bassariscus astutus
Chaetodipus nelsoni
Falcipennis canadensis
Otus kennicottii
Ctenomys conoveri

Based on studies in:
Canada: Manitoba (Grassland)
USA: Arizona (Forest, Montane)
USA: California, Cabrillo Point (Grassland)
USA: Arizona, Sonora Desert (Desert or dune)

This list may not be complete but is based on published studies.
SPIRE project

Lifelists

Trips

Visits

2006-11-21

Parque National Cajas, Ecuador
2007-01-19

Bernal Hill, United States of America
2008-04-22

Glen Canyon Park, United States of America
2009-04-04

Glen Canyon Park, United States of America

Nestling
2009-05-09

Nelson Lake Forest Preserve, United States of America
2010-01-03

Sacramento National Wildlife Refuge, United States of America
2011-07-15

Pantanal, Brazil
2012-05-20

Pyramid Lake, United States of America

Saw silhouette only. Landed in some sagegrass after flight from direction of a number of trees.
2012-07-11

Theodore Roosevelt National Park - South Unit, United States of America

Juvenile on ridge was shrieking, and there was a "whoop whoop whoop" response from the ground and in a tree.
2012-12-06

Solano County Farmlands, United States of America
2013-04-19

Bolivar Peninsula, United States of America
2014-04-05

Cosumnes River Preserve, United States of America
2014-05-09

Cave Creek Canyon--Southwestern Research Station, United States of America

Heard only.
2015-01-18

Tilden Regional Park, United States of America

Two calling during the daytime, was able to locate one of them
2015-05-03

Glen Canyon Park, United States of America
2016-12-17

Big Branch National Wildlife Refuge, United States of America
2020-07-20

Goose Lake, United States of America
2020-08-20

Bernal Hill, United States of America
2021-08-21

Ventana Wilderness, United States of America
2021-10-08

Golden Gate Park - San Francisco Botanical Garden, United States of America
2022-01-15

Sacramento National Wildlife Refuge, United States of America
2025-05-03

Bernal Hill, United States of America
2025-06-15

Bernal Hill, United States of America
2025-06-22

Bernal Hill, United States of America