Strigidae
The true owls or typical owls are one of the two generally accepted families of owls, the other being the barn owls and bay owls (Tytonidae). This large family comprises roughly 230 living or recently extinct species in 23 genera. The Strigidae owls have a cosmopolitan distribution and are found on every continent except Antarctica.

Wolfgang Wander · CC BY-SA 3.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Also called
- true owlPBDB
- Sits inside
- StrigiformesPBDB
- Diet
- carnivore, insectivorePBDB
- Life habit
- volantPBDB
- Motility
- actively mobilePBDB, for Theropoda
- Vision
- well-developedPBDB, for Strigiformes
- Environment
- terrestrialPBDB
Time the record covers
At least 41 million years on record.
The record covers at least 41.03 Mya to 11.7 ka. No occurrence read is dated outside 48.07 Mya to 0 Mya.
431 occurrences of Strigidae on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
431 occurrencesThese are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
21 formations
- facies à Congeria Formation7
- Quercy Phosphorites Formation4
- Messel Formation3
- Okeechobee Formation3
- Vogel River Series Formation2
- Edelény Formation2
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The named rock units Strigidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 394 occurrences have no formation on record, which is common for older literature.
Strigidae and its relatives
PleistoceneWhere Strigidae and its relatives were recorded in the Pleistocene.
Found in the same rock
3,138 taxa- Tyto alba45 sites
- Passeriformes37 sites
- Equus29 sites
- Anas platyrhynchos27 sites
- Asio flammeus26 sites
- Falco sparverius26 sites
- Corvus corax24 sites
- Athene cunicularia23 sites
- Bubo virginianus21 sites
- Meleagris gallopavo21 sites
- Colaptes auratus20 sites
- Turdus20 sites
- Aenocyon dirus19 sites
- Anas19 sites
- Anas crecca19 sites
- Anatidae19 sites
- Buteo jamaicensis19 sites
- Falco peregrinus19 sites
- Podilymbus podiceps19 sites
- Aquila chrysaetos18 sites
- Branta canadensis18 sites
- Columba18 sites
- Columba livia18 sites
- Corvus monedula18 sites
The Paleobiology Database records 269 sites for Strigidae, and this reads 240 of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
160 references- The Quaternary avifauna of Crete, Greece27
- The fossil Birds of California15
- A new genus for the extinct late Pleistocene owl Strix brea Howard (Aves: Strigiformes) from Rancho La Brea, California13
- Avian community, climate, and sea-level changes in the Plio-Pleistocene of the Florida Peninsula13
- Quaternary fossil fauna of South Canterbury, South Island, New Zealand10
- Pleistocene vertebrate faunas of Hungary10
- Plio-Pleistocene fossil vertebrates of Monte Tuttavista (Orosei, Eastern Sardinia, Italy), an overview9
- Prehistoric human impacts on California birds: evidence from the Emeryville shellmoumd avifauna9
- The owls (Aves: Strigiformes) of Phosphorites du Quercy (France): Systematics, biostratigraphy, and paleobiogeography9
- A comparison of avian assemblages from individual pits at Rancho La Brea, California9
- Terminal Pleistocene–Holocene Avifauna of San Miguel and Santa Rosa Islands: Identifications of Previously Unidentified Avian Remains Recovered from Fossil Sites and Prehistoric Cave Deposits7
- Late Messinian mollusks and vertebrates from Moncucco Torinese, north-western Italy. Paleoecological and paleoclimatological implications7
Each of the 431 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. 148 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content2
Picture of Strigidae
- Source
- Wikipedia/Commons
- Credit
- Wolfgang Wander
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
The description on this site
- Source
- Wikipedia, “Strigidae”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itStrigiformes through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Vigors 1825