Example image of eyePlorer eyePlorer map for 'Great Horned Owl': Americas True owl Andes Lesser Horned Owl Pacific Ocean Species Bergmann's rule Equator Polar region Iris (anatomy) South American Great Horned Owl Feather Arctic Central America Bird vocalization Barn Owl Horned owl Allopatric speciation Subspecies Cline (biology) Gloger's rule Minnesota Nova Scotia Prince Edward Island Texas United States Amazon Basin Argentina Bolivia Brazil Guiana Shield Louis Jean Pierre Vieillot Hudson Bay Mackenzie, British Columbia Montana North Dakota Latitude Nomen dubium Taxon Snowy Owl Baja California California John Cassin Mexico San Joaquin Valley Sierra Nevada (U.S.) San Diego County, California Alaska Robert Ridgway Colombia
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