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Great Horned Owl

GREAT HORNED OWL

Photo : Anonyme de Hiva Oa


APPAREANCE AND IDENTIFICATION

22 inches. Male and female identical in appearance. This is the only nocturnal predator introduced in French Polynesia. The head is characteristic, with big round eyes and ears with erectile feathers. His body is brown, finely streaked with white and brown.

Order: Strigiformes

Familly: Strigidae

Category: Introduced Birds


LOCATION

Native from America, introduced on the island of Hiva Oa in 1927 at a price of eight dollars to fight the invasion of rats.


CHARACTERISTICS

Both the coastal areas and interior of the island, but reproduces on the highlands.

« Hou-hou,… » , characteristic of the owls, squeals and yelps.

To listen the Great Horned Owl:
http://www.xeno-canto.org/species/Bubo-virginianus

Rodents, lizards, fish and birds which unfortunately are endemic species of the Marquesas.

Nests in the cliffs of Hiva Oa. Its reproduction is studied outside French Polynesia. Lays one to five white eggs, incubated it for 32 to 35 days. Young fly at the age of 9 to 10 weeks.

Original text by Caroline BLANVILLAIN – Supplements and update by various members of the SOP Manu.

Bibliography:
https://inpn.mnhn.fr/espece/cd_nom/441691
http://avibase.bsc-eoc.org/species.jsp?avibaseid=34D6EE78CA7AE050
http://www.oiseaux.net/oiseaux/grand-duc.d.amerique.html
http://datazone.birdlife.org/species/factsheet/great-horned-owl-bubo-virginianus
http://www.hbw.com/ibc/species/great-horned-owl-bubo-virginianus
https://www.iucnredlist.org/species/61752071/132039486

NAMES

Scientific Name: Bubo virginianus (Gmelin, 1788)

LOCATION
  • Marquesas : Hiva Oa
  • America (native)

STATUS AND PROTECTION

This species is co-responsible alongside with the Common Myna also (Acridotheres tristis)  to the scarcity of many endemic species on this island such as White-capped Fruit-dove (Ptilinopus dupetithouarsii), Southern Marquesan Reed-warbler (Acrocephalus mendanae ) and the Marquesan Swiftlet (Aerodramus ocistus). The Marquesas Kingfisher (Todiramphus godeffroyi) is now almost extinct on Hiva Oa, probably because of the introduction of the Great Horned Owl while the rats still abound on Hiva Oa.

The species was classified harmful in French Polynesia, its destruction is permitted and desirable.
The species is on the list of species threatening biodiversity through territorial regulatory French Polynesia.
It is classified as “Least Concern” (LC) on the IUCN Red List.