Animalia > Chordata > Aves > Accipitriformes > Accipitridae > Circus > Circus cinereus

Circus cinereus (Cinereous Harrier)

Wikipedia Abstract

The cinereous harrier (Circus cinereus) is a South American bird of prey of the harrier family. Its breeding range extends from the Tierra del Fuego through Argentina and Chile to Bolivia, Paraguay, Peru and southern Brasil; and across the Andes north to Colombia. The bird's population is declining but due to its large range is not considered vulnerable. The term cinereous, deriving from the Latin word for ashy, describes its colouration.
View Wikipedia Record: Circus cinereus

EDGE Analysis

Uniqueness Scale: Similiar (0) 
2
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
16
 Unique & Vulnerable (100)
ED Score: 5.22679
EDGE Score: 1.82886
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  404 grams
Female Weight [1]  1.038 lbs (471 g)
Male Weight [1]  337 grams
Weight Dimorphism [1]  39.8 %
Diet [2]  Carnivore (Invertebrates), Carnivore (Vertebrates)
Diet - Ectothermic [2]  30 %
Diet - Endothermic [2]  60 %
Diet - Invertibrates [2]  10 %
Forages - Mid-High [2]  20 %
Forages - Understory [2]  20 %
Forages - Ground [2]  60 %
Clutch Size [3]  4
Raptor Research Conservation Priority [4]  80
Snout to Vent Length [1]  17 inches (44 cm)
Wing Span [5]  31 inches (.8 m)

Ecoregions

Protected Areas

Biodiversity Hotspots

Name Location Endemic Species Website
Atlantic Forest Argentina, Brazil, Paraguay, Uruguay No
Chilean Winter Rainfall-Valdivian Forests Chile No
Tropical Andes Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela No

Prey / Diet

Columbina picui (Picui Ground Dove)[6]
Passer domesticus (House Sparrow)[6]
Sicalis luteola (Grassland Yellow-Finch)[6]
Zenaida auriculata (Eared Dove)[6]
Zonotrichia capensis (Rufous-collared Sparrow)[6]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Galictis vittata (Greater Grison)1
Pseudoscops clamator (Striped Owl)1

Consumers

Parasitized by 
Notaulus asiaticus[7]
Ophiosoma microcephalum[7]

Range Map

External References

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
♦ 2Hamish 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
♦ 3Jetz 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
♦ 4Buechley 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
♦ 5On the allometry of wings, Enrique Morgado, Bruno Günther and Urcesino Gonzalez, Revista Chilena de Historia Natural 60: 71-79, 1987
♦ 6DIET OF BREEDING CINEREOUS HARRIERS (CIRCUS CINEREUS) IN SOUTHEASTERN BUENOS AIRES PROVINCE, ARGENTINA, María S. Bó, Sandra M. Cicchino, Mariano M. Martínez, J. Raptor Res. 34(3):237-241
♦ 7Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License
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