Animalia > Chordata > Aves > Strigiformes > Strigidae > Ninox > Ninox strenua

Ninox strenua (Powerful Boobook; Powerful Owl)

Synonyms: Athene strenua

Wikipedia Abstract

The powerful owl (Ninox strenua) is a species of owl native to south-eastern and eastern Australia, the largest owl on that continent. It is found in coastal areas, the Great Dividing Range rarely more than 200 km (120 mi) inland. The International Union for Conservation of Nature(IUCN) Red List of Threatened Species refers to this species as powerful boo-book, however, this is not used as a common name in Australia.
View Wikipedia Record: Ninox strenua

EDGE Analysis

Uniqueness Scale: Similiar (0) 
3
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
22
 Unique & Vulnerable (100)
ED Score: 7.81175
EDGE Score: 2.17608
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  2.976 lbs (1.35 kg)
Birth Weight [2]  56.5 grams
Female Weight [4]  2.76 lbs (1.252 kg)
Male Weight [4]  3.19 lbs (1.447 kg)
Weight Dimorphism [4]  15.6 %
Diet [3]  Carnivore (Vertebrates)
Diet - Endothermic [3]  100 %
Forages - Canopy [3]  30 %
Forages - Mid-High [3]  30 %
Forages - Understory [3]  20 %
Forages - Ground [3]  20 %
Clutch Size [6]  2
Clutches / Year [7]  1
Fledging [1]  60 days
Incubation [5]  37 days
Mating Display [2]  Ground display
Mating System [2]  Monogamy
Maximum Longevity [5]  30 years
Nocturnal [3]  Yes
Raptor Research Conservation Priority [8]  120
Snout to Vent Length [1]  25 inches (64 cm)
Wing Span [7]  4.1 feet (1.25 m)

Ecoregions

Name Countries Ecozone Biome Species Report Climate Land
Use
Australian Alps montane grasslands Australia Australasia Montane Grasslands and Shrublands
Eastern Australian temperate forests Australia Australasia Temperate Broadleaf and Mixed Forests
Naracoorte woodlands Australia Australasia Mediterranean Forests, Woodlands, and Scrub
Southeast Australia temperate forests Australia Australasia Temperate Broadleaf and Mixed Forests
Southeast Australia temperate savanna Australia Australasia Temperate Grasslands, Savannas, and Shrublands

Protected Areas

Prey / Diet

Prey / Diet Overlap

Providers

Shelter 
Eucalyptus obliqua (messmate)[9]

Consumers

Parasitized by 
Centrorhynchus bancrofti[10]
Haemoproteus noctuae <Unverified Name>[11]
Synhimantus affinis[11]

External References

Audio

Play / PauseVolume
Provided by Center for Biological Diversity via Myxer Author: Richard Jackson

Citations

Attributes / relations provided by
♦ 1Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
♦ 2Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
♦ 3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
♦ 4Higgins, PJ (Ed) (1999) Handbook of Australian, New Zealand and Antarctic birds. Volume 4: Parrots to dollarbird. Oxford University Press, Melbourne
♦ 5Kemp, AC. 1989. Estimation of Biological Indices for Little-known African Owls Meyburg, B.-U & R. D. Chancellor eds. 1989 Raptors in the Modern World WWGBP: Berlin, London & Paris
♦ 6Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
♦ 7del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 8Buechley ER, Santangeli A, Girardello M, et al. Global raptor research and conservation priorities: Tropical raptors fall prey to knowledge gaps. Divers Distrib. 2019;25:856–869. https://doi.org/10.1111/ddi.12901
♦ 9Diet and habitat of the powerful owl (Ninox strenua) living near Melbourne, Elizabeth Lavazanian, M. App. Sc. thesis, Deakin University (1996)
♦ 10Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
♦ 11Species Interactions of Australia Database, Atlas of Living Australia, Version ala-csv-2012-11-19
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Abstract provided by DBpedia licensed under a Creative Commons License
Audio software provided by SoundManager 2
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0