鸟类百科大全 > 鸮形目 (Strigiformes)

Strigidae 国家二级保护动物 本科包含27个属、220个种、455个亚种

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同义词条: True owl

Chinese name: 鸱鸮科

Scientific classification

Strigidae
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True owl or Typical owl (family Strigidae) are one of the two generally accepted families of Owls, the other being the barn owls (Tytonidae). The Sibley-Ahlquist taxonomy unites the Caprimulgiformes with the owl order; here, the typical owls are a subfamily Strigidae. This is unsupported by more recent research (see Cypselomorphae for details), but the relationships of the owls in general are still unresolved. This large family comprises around 189 living species in 25 genera. The typical owls have a cosmopolitan distribution and are found on every continent except Antarctica.

Family: Strigidae
Order: Strigiformes
中文科名: 鸱鸮科
中文目名: 鸮形目
Protected in China: Chinese Bird Second class protected species
鸟类百科采用世界鸟类学家联合会(IOC)最新最权威的鸟类分类方法,Version 3.5
Contents

Morphology

Strigidae
Cross sectioned Great Grey Owl specimen showing the extent of the body plumage, Zoological Museum, Copenhagen

While typical owls (hereafter referred to simply as owls) vary greatly in size, with the smallest species, the Elf Owl, being a hundred times smaller than the largest, the Eurasian Eagle-Owl and Blakiston's Fish Owl, owls generally share an extremely similar body plan. They tend to have large heads, short tails, cryptic plumage and round facial discs around the eyes. The family is generally arboreal (with a few exceptions like the Burrowing Owl) and obtain their food on the wing. The wings are large, broad, rounded and long. Like other birds of prey many owl species exhibit reverse sexual dimorphism in size, where females are larger than males (as opposed to the more typical situation in birds where males are larger).

Because of their nocturnal habits they tend not to exhibit sexual dimorphism in their plumage. The feathers are soft and the base of each is downy, allowing for silent flight. The toes and tarsus are feathered in some species, and more so in species at higher latitudes. Numerous species of owl in the genus Glaucidium and the Northern Hawk-Owl have eye patches on the backs of their heads, apparently to convince other birds they are being watched at all times. Numerous nocturnal species have ear-tufts, feathers on the sides of the head that are thought to have a camouflage function, breaking up the outline of a roosting bird. The feathers of the facial disc are arranged in order to increase sound delivered to the ears. Hearing in owls is highly sensitive and the ears are asymmetrical allowing the owl to localise a sound. In addition to hearing owls have massive eyes relative to their body size. Contrary to popular belief, however, owls cannot see well in extreme dark and are able to see fine in the day.

Behaviour

Owls are generally nocturnal and spend much of the day roosting. They are often perceived as tame since they will allow people to approach quite closely before taking flight, but they are instead attempting to avoid detection. The cryptic plumage and inconspicuous locations adopted are an effort to avoid predators and mobbing by small birds.

Systematics

Strigidae
Skeleton of Strigidae. Muséum de Toulouse

The nearly 200 extant species are assigned to a number of genera, which are in taxonomic order:

  • Genus Megascops: screech-owls, some 20 species
  • Genus Otus: scops-owls; probably paraphyletic, about 45 species
  • Genus Pyrroglaux – Palau Owl
  • Genus Gymnoglaux – Bare-legged Owl or Cuban Screech-owl
  • Genus Ptilopsis – white-faced owls, 2 species
  • Genus Mimizuku – Giant Scops-owl or Mindanao Eagle-owl
  • Genus Bubo – horned owls, eagle-owls and fish-owls; paraphyletic with Nyctea, Ketupa and Scotopelia, some 25 species
  • Genus Strix – earless owls, some 15 species
  • Genus Ciccaba – 4 species
  • Genus Lophostrix – Crested Owl
  • Genus Jubula – Maned Owl
  • Genus Pulsatrix – spectacled owls, 3 species
  • Genus Surnia – Northern Hawk-Owl
Strigidae
Tawny Owl
  • Genus Glaucidium – pygmy owls, about 30–35 species
  • Genus Xenoglaux – Long-whiskered Owlet
  • Genus Micrathene – Elf Owl
  • Genus Athene – 2–4 species (depending on whether Speotyto and Heteroglaux are included or not)
  • Genus Aegolius – saw-whet owls, 4 species
  • Genus Ninox – Australasian hawk-owls, some 20 species
  • Genus Uroglaux – Papuan Hawk-owl
  • Genus Pseudoscops – Jamaican Owl and possibly Striped Owl
  • Genus Asio – eared owls, 6–7 species
  • Genus Nesasio – Fearful Owl

Recently extinct

  • Genus Mascarenotus – Mascarene owls, 3 species (extinct c.1850)
  • Genus Sceloglaux – Laughing Owl (extinct 1914?)

Late Quaternary prehistoric extinctions

  • Genus Grallistrix – Stilt-owls, 4 species
    • Kaua‘i Stilt-owl, Grallistrix auceps
    • Maui Stilt-owl, Grallistrix erdmani
    • Moloka‘i Stilt-owl, Grallistrix geleches
    • O‘ahu Stilt-owl, Grallistrix orion
  • Genus Ornimegalonyx – Caribbean giant owls, 1–2 species
    • Cuban Giant Owl, Ornimegalonxy oteroi
    • Ornimegalonyx sp. – probably subspecies of O. oteroi

Fossil record

  • Mioglaux (Late Oligocene? – Early Miocene of WC Europe) – includes "Bubo" poirreiri
  • Intutula (Early/Middle Miocene of WC Europe) – includes "Strix/Ninox" brevis
  • Alasio (Middle Miocene of Vieux-Collonges, France) – includes "Strix" collongensis

Placement unresolved:

  • "Otus/Strix" wintershofensis – fossil (Early/Middle Miocene of Wintershof West, Germany) – may be close to extant genus Ninox
  • "Strix" edwardsi – fossil (Middle Miocene of Grive-Saint-Alban, France)
  • "Asio" pygmaeus – fossil (Early Pliocene of Odessa, Ukraine)
  • Strigidae gen. et sp. indet. UMMP V31030 (Rexroad Late Pliocene of Kansas, USA) – Strix/Bubo?
  • Ibiza Owl, Strigidae gen. et sp. indet. – prehistoric (Late Pleistocene/Holocene of Es Pouàs, Ibiza)

The supposed fossil heron "Ardea" lignitum (Late Pliocene of Germany) was apparently a strigid owl, possibly close to Bubo. The Early–Middle Eocene genus Palaeoglaux from west-central Europe is sometimes placed here, but given its age it is probably better considered its own family for the time being.

References

  1. ^ ab Marks, J. S.; Cannings, R. J. and Mikkola, H. (1999) "Family Strigidae (Typical Owls)". In del Hoyo, J.; Elliot, A. & Sargatal, J. (eds.) (1999). Handbook of the Birds of the World. Volume 5: Barn-Owls to Hummingbirds. Lynx Edicions. ISBN 84-87334-25-3
  2. Earhart, Caroline M. and Johnson, Ned K. (1970). "Size Dimorphism and Food Habits of North American Owls". Condor 72 (3): 251–264. doi:10.2307/1366002. 
  3. Kelso L & Kelso E (1936). "The Relation of Feathering of Feet of American Owls to Humidity of Environment and to Life Zones". Auk 53 (1): 51–56. doi:10.2307/4077355. 
  4. Olson, p. 131
  5. Feduccia, J. Alan; Ford, Norman L. (1970). "Some birds of prey from the Upper Pliocene of Kansas". Auk 87 (4): 795–797. doi:10.2307/4083714. 
  6. Sánchez Marco, Antonio (2004). "Avian zoogeographical patterns during the Quaternary in the Mediterranean region and paleoclimatic interpretation". Ardeola 51 (1): 91–132. 
  7. Olson, p. 167

Bibliography

  • Olson, Storrs L. (1985): The fossil record of birds. In: Farner, D.S.; King, J.R. & Parkes, Kenneth C. (eds.): Avian Biology 8: 79–238. Academic Press, New York.

External links

  • ITIS – Strigidae Taxonomy
  • Typical owl videos on the Internet Bird Collection
  • Strigidae sounds from the Neotropics on xeno-canto.org
  • The Owl Pages about owls – photos, calls, books, art, mythology and more.
Categories:
  • Owls
  • Strigidae
Hidden categories:
  • Articles with 'species' microformats
  • Commons category with local link same as on Wikidata

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      参考资料

      [1].  Strigidae, from Wikipedia:  http://en.wikipedia.org/wiki/Strigidae

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