The Owl Pages

Owls in the Fossil Record

By David Johnson

Fossil Owls

As work proposed under [the Global Owl Project] is directed at currently living owl taxa, only an overview of owls in the fossil record is offered here to briefly characterize the knowledge base and timeline of fossil owls.

Fossil owls are known from the Eocene, and some living genera have been identified in Miocene, Oligocene (Brodkorb 1971; Walker, in Burton 1973), and Paleocene deposits (Rich and Bohaska 1976; 1981). Brodkorb (1971) listed some 41 extinct species of owls, 11 of which were Tytonidae, 5 were Protostrigidae, and 25 to Strigidae.

The history of the Tytonidae is an old one, and it is not known whether it originated in the eastern or western hemisphere. The representatives of six genera of the Tytonidae have been described from the Paleocene-Oligocene phosphorites of Quercy, France, which illustrates the differentiation and radiation of tytonid owls before the present era of mainly strigid owls (Mourer-Chauvire 1987).

Sub-recent and Pleistocene Barn Owl (Tyto alba) bones have been found in North America, Nuevo Leon and Yucatan in Mexico, Brazil, Galapagos Islands, New Zealand, southern Europe, and Israel (Brodkorb 1971; Mourer-Chauvire 1975). Other species of extinct sub-recent and Pleistocene Barn Owls have been described from cave deposits in Malta (Tyto melitensis), Mauritius in the western Indian Ocean (Tyto sauzieri), and from the West Indies.

Owls from the West Indies were described by Alexander Wetmore as Tyto cavatica (Puerto Rico), Tyto ostologo (Haiti), and Tyto pollens (Bahama Islands) and by Oscar Arrendondo as Tyto noeli and Tyto riveroi (Cuba) (Arredondo 1976; Olson 1978).

During Upper Miocene times lived Tyto robusta, in the Gargano Peninsula (then an island), Italy (Ballmann 1973, 1976), along with the largest owl Tyto gigantea (larger than the present day European Eagle Owl (Bubo bubo)).

An owl from the Strix group, and of very large size (about 1 m tall), Ornimegalonyx oteroi has been described from Upper Pleistocene cave deposits on Cuba (Arredondo 1975).

As no fossil bones belonging to the European Scops-owl (Otus scops) have been found in deposits in Hungary and France older than Upper and Middle Pleistocene (Mourer-Chauvire 1975) and the majority of related species occur in southeast Asia, the European and African Scops Owls probably have the same Asian source. Fossil fragments of a kind of screech owl of the Otus kennicottii/asio type from the Upper Pliocene of Kansas (Ford 1966) support the hypothesis that these screech owls are derived from a tropical North American (vs. Asian) origin.

The Northern Hawk-owl (Surnia ulula) is monotypic in its genus and no fossil relatives are known. Fossil records exist for this species from the Late Pleistocene in Tennessee, United States (Parmalee and Klippel 1982), France (Mourer-Chauvire 1975), Switzerland, Austria, and Hungary (Janossy 1963).

Fossil records of pygmy owls (Glaucidium) in the Americas are from Pleistocene deposits only (California; Mexico; Brazil; Brodkorb 1971).

Fossils of Burrowing Owls (Speotyto megalopera), somewhat larger and more robust than the present species (Athene cunicularia), have been found in Upper Pliocene deposits in Idaho and Kansas (Ford 1966; Ford and Murray 1967).

The Strix intermedia was described from Middle Pleistocene fossils found in Czechoslovakia and Hungary (Janossy 1972). Leg and wing bones of this owl are intermediate in size and structure between those of current day Strix uralensis and Strix aluco. Pre-Pleistocene fossils of Strix brevis (Ballmann, cited by Janossy 1978) are somewhat larger and have slightly different proportions from those of present day Strix aluco, and lend support to the theory that the species differentiation between Strix uralensis and Strix aluco is yet more complicated.

A representative of the genus Aegolius was already present in the Upper Pliocene of Hungary and remains of Boreal Owls (Aegolius funerus) itself have been reported from there too, from the Upper Pleistocene onward (Janossy 1981). Aegolius funerus and the Northern Saw-whet owl (Aegolius acadicus) have also been reported from the Late Pleistocene in Tennessee (Parmalee and Klippel 1982).

Many species of owl are recorded from the late Pleistocene of Britain (e.g., snowy owls Nyctea scandiaca and European eagle owls Bubo bubo, Harrison 1987), France (snowy owls Nyctea scandiaca gallica, Mourer-Chauvire 1975).

In addition to the owls themselves, fossil assemblages of the bones of small mammals are commonly found in caves throughout the world. Since few such mammals live in caves, it is recognized that these animals were accumulated primarily by cave-roosting owl species, but by other means as well (Andrews 1990). These small mammal remains yield information about environmental and climatic changes, particularly those during the Pleistocene and Holocene.

Literature Cited
Amadon, D. and J. Bull. 1988. Hawks and owls of the world. Proceedings of the Western Foundation for Vertebrate Zoology 3:295-347.
Burton, J.A. (ed). 1973. Owls of the world: their evolution, structure, and ecology. Peter Lowe/Eurobook Ltd. 216 p.
Clements, J.F. 1974. Birds of the world: a check list. The Two Continental Publ. Co. Ltd. New York.
Eck, S. and H. Busse. 1973. Eulen: die rezenten und fossilen Formen. Wittenberg-Lutherstadt; Ziemsen.
Foerbringer, M. 1888. Untersuchungen zur Morphologie und Systematik der Vogel. Amsterdam.
Gadow, H. 1892. On the classification of birds. Proc. Zool. Soc. London: 229-256.
Grossman, J.L. and J. Hamlet. 1964. Birds of prey of the world. Clarkson N. Polter Inc., New York.
Heidrich, H.P. and M. Wink. 1994. Tawny owl (Strix aluco) and Hume's Tawny Owl (Strix butleri) are distinct species: evidence from nucleotide sequences of the cytochrome b gene. Z. Naturforsch. 49c:230-234.
Heidrich, H.P., C. Koenig, and M. Wink. 1995. Molecular phylogeny of the South American Screech Owls of the Otus atricapillus complex (Aves Strigidae) inferred from nucleotide sequences of the mitochondrial cytochrome b gene. Z. Naturforsch. 50c:294-302.
Hume, R. 1991. Owls of the world. Collins and Brown Ltd. 192 p.
Koenig, C. 1994. Biological patterns in owl taxonomy, with emphasis on bioacoustical studies on Neotropical Pygmy (Glaucidium) and Screech Owls (Otus). Pp. 1-19 In B.-U. Meyburg and R.D. Chancellor (eds.) Raptor Conservation Today. Pica Press, Sussex, U.K.
Koenig, C., H.P. Heidrich and M. Wink 1996. Zur Taxonomie der Uhus (Strigidae:Bubo spp.) im sudlichen Sudamerika. Stuttgarter Beitr. Naturk. Ser. A, no. 540.
Koenig, C and M. Wink. 1995. Eine neue Unterart des Brasilsperlingskauzes aus zentralargentinien: Glaucidium brasilianum stranecki n. ssp. J. Orn. 136:461-465.
Marshall, J.T.Jr. 1966. Relationships of certain owls around the Pacific. Nat. Hist. Bull. Siam. Soc. 21:235-242.
Mayr, E. and L.L. Short. 1970. Species taxa of North American birds. Nuttall Ornithological Club Publication No. 9:1-127.
Meinertzhagen, R. 1951. On the genera Athene Boie 1822 (genotype Athene noctua Scopoli) and Speotyto Golger 1842 (genotype Strix cunicularia Molina). Bulletin of British Ornithological Club 70:8-9.
Mindell, D.P., M.D. Sorenson, C.J. Huddleston, H. Miranda, A. Knight, S.J. Sawchuck, and T. Yuri. 1997. Phylogenetic relationships among and within select avian orders based on mitochondrial DNA. Pp. 213-247 In D.P. Mindell (ed.) Avian molecular evolution and systematics. Academic Press, San Diego.
Miranda, H.C., R.S. Kennedy, and D.P. Mindell. 1997. Phylogenetic placement of Mimizuku gurneyi (Aves:Strigidae) inferred from mitochondrial DNA. Auk 114:315-323.
Nitsch, C.L. 1840. System der Pterylographie. E. Anton, Halle.
Norberg, R.A. 1977. Occurrence and independent evolution of bilateral ear asymmetry in owls and implications on owl taxonomy. Phil. Transactions of the Royal Society London 280(973):375-408.
Peters, J.L. 1940. Checklist of birds of the world. Vol 4. (Cuculiformes, Strigiformes, Apodiformes). Harvard University Press, Cambridge.
Sibley, C.G. and B.L. Monroe. 1990. Distribution and taxonomy of birds of the world. New Haven - Yale University Press.
Wetmore, A. 1935. The type specimen of Newton's owl. Auk 52:186-187.
van der Weyden, W.J. 1975. Scops and screech owls: vocal evidence for a basic sub-division in the genus Otus (Strigidae). Ardea 63:65-77.
Andrews, P. 1990. Owls, caves and fossils. University of Chicago Press. 231 p.
Arrendondo, O. 1975. Distribucion geographica y descricion de algu nos huesos de Ornimegalonyx oteroi Arrendondo, 1958, del Pleistoceno superior de Cuba. Mem. Soc. Cienc Nat. La Salle 35(101):133-190.
Arrendondo, O. 1976. The great predatory birds of the Pleistocene of Cuba. Smithsonian Contr. Paleobiol. 27:169-187.
Ballmann, P. 1973. Fossile vogel aus dem Neogen der Halbinsel Gargano (Italien). 1. Scripta Geol. 17:1-75.
Ballmann, P. 1976. Fossile vogel aus dem Neogen der Halbinsel Gargano (Italien). 1. Scripta Geol 38:1-59.
Brodkorb, P. 1971. Catalogue of fossil birds. Bull. Florida State Museum. 7:1-1228.
Burnham, W.A., D.F. Whitacre, and J.P. Jenny. 1994. The Maya Project: use of raptors as tools for conservation and ecological monitoring of biological diversity. Pp. 257-264 In B.-U. Meyburg and R.D. Chancellor (eds.). Raptor Conservation Today. WWGBP / Pica Press.
Burton, J.A. 1973. (ed). Owls of the world. Peter Lowe, London.
Debus, S. 2002. Distribution, taxonomy, status and major threatening processes of owls in the Australasian Region. Pp. 355-363 In I. Newton, R. Kavanagh, J. Olsen, and I. Taylor (eds.) Ecology and Conservation of Owls. CSIRO Publishing, Australia.
Ford, N.L. 1966. Fossil owls from the Rexroad Fauna of the Upper Pliocene of Kansas. Condor 68:472-475.
Ford, N.L. and B.G. Murray. 1967. Fossil owls from the Hagerman local fauna (Upper Pliocene) of Idaho. Auk 84:115-117.
Harrison, C.J.O. 1987. Pleistocene and prehistoric birds of south-west Britain. Proc. Univ. Bristol Spelaeol. Soc. 18:81-104.
Janossy, D. 1963. Die altpleistozane Wirbeltierfauna von Kovesvarad bei Repashuta (bukk-Gebirge). Ann. Hist. Nat. Mus. Hung. 55:109-140.
Janossy, D. 1972. Die mittelpleistozane Vogelfauna der Stranska Skala. Anthropos. 20:35-64.
Janossy, D. 1978. Plio-Pleistocene bird remains from the Carpathian Basin. III. Aquila 84:9-36.
Janossy, D. 1981. Plio-Pleistocene bird remains from the Carpathian Basin. IV. Systematical and Geographical Catalog. Aquila 87:9-22.
Mourer-Chauvire, C. 1975. Les oiseaux du Pleistocene moyen et superieur de France. Doct. Thesis. Univ. Claude Bernard, Lyons.
Mourer-Chauvire, C. 1987. Les Strigiformes des phosphorites du Quercy (France): systematique, biostratigraphie, et paleobiogeographie. Docum. Lab. Geol. Lyon. 99:89-135.
Olson, S.L. 1978. A paleontological perspective of West Indian birds and mammals. Spec. Publ. Acad. Nat. Sci. Philadelphia 13:99-117.
Parmalee, P.W. and W.E. Klippel 1982. Evidence of a boreal avifauna in Middle Tennessee during the Late Pleistocene. Auk 99:365-368.
Penhallurick, J.M. 2002. The taxonomy and conservation status of the owls of the world: a review. Pp. 343-354 In I. Newton, R. Kavanagh, J. Olsen, and I. Taylor (eds.) Ecology and Conservation of Owls. CSIRO Publishing, Australia.
Reichholf, J. 1974. Artenreichtum, Haufigkeit und Diversitat derGreifvogel in einigen Gebieten yon Sudamerika. Journal of Ornithology 115:381-397.
Rich, P.V. 1982. Tarsometatarsus of Protostrix from the mid-Eocene of Wyoming. Auk 99:576-579.
Rich, P.V. and D.J. Bohaska 1976. The world's oldest owl: a new Strigiform from the Paleocene of southwestern Colorado. Smithsonian Contr. Paleobiol. 27:87-93.
Rich, P.V. and D.J. Bohaska. 1981. The Ogygoptyngidae, a new family of owls from the Paleocene. Alcheringa 5:95-102.
Olsen, J., M. Wink, H. Sauer-Goerth, and S. Trost. 2002. A new Ninox from Sumba, Indonesia. Emu 102:223-231.
Kavanagh, R.P. 1991. The target species approach to wildlife management: gliders and owls in the forests of south-eastern New South Wales. Pp. 377-383 In D. Lunney (ed.). Conservation of Australia's Forest Fauna. Royal Zoological Society of New South Wales: Mosman.
Johnstone, R.E. and J.C. Darnell. 1997. Description of a new subspecies of Boobook owl Ninox novaeseelandiae (Gmelin) from Roti Island. Western Australian Naturalist 21:161-173.
Rasmussen, P.C. 1999. A new species of hawk-owl Ninox from North Sulawesi, Indonesia. Wilson Bulletin 111:457-464.
Scotts, D.J. 1991. Old-growth forests: their ecological characteristics and value to forest-dependent vertebrate fauna of south-east Australia. Pp. 147-159 In D. Lunney (ed.). Conservation of Australia's Forest Fauna. Royal Zoological Society of New South Wales: Mosman.
Thiollay, J.-M. 1994. A world review of tropical forest raptors, current trends, research objectives and conservation strategy. Pp. 231-240 In B.-U. Meyburg and R.D. Chancellor (eds.). Raptor Conservation Today. WWGBP / Pica Press.
Tyndale-Biscoe, C.H. and J.H. Calaby. 1975. Eucalypt forests as refuge for wildlife. Australian Forestry 38:117-133.
van Orden, C. and N.V. Paklina. Roofvogels en traditie in zuidelijk Centraal-Azie. De Takkeling 9(3):227-234.
Virani, M. and R.T. Watson. 1998. Raptors in the east African tropics and western Indian Ocean islands: state of ecological knowledge and conservation status. Journal of Raptor Research 32(1):28-39.
Zink, R.M. and M.C. McKitrick. 1995. The debate over species concepts and its implications for ornithology. Auk 112:701-719.

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