Animalia > Chordata > Aves > Pelecaniformes > Ardeidae > Ardeola > Ardeola ralloides

Ardeola ralloides (Squacco Heron)

Wikipedia Abstract

The squacco heron (Ardeola ralloides) is a small heron, 44–47 cm (17–19 in) long, of which the body is 20–23 cm (7.9–9.1 in), with 80–92 cm (31–36 in) wingspan. It is of Old World origins, breeding in southern Europe and the Greater Middle East.
View Wikipedia Record: Ardeola ralloides

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 11.4606
EDGE Score: 2.52257


Adult Weight [1]  288 grams
Birth Weight [2]  16 grams
Diet [3]  Carnivore (Invertebrates), Carnivore (Vertebrates), Piscivore
Diet - Fish [3]  60 %
Diet - Invertibrates [3]  10 %
Diet - Vertibrates [3]  30 %
Forages - Ground [3]  50 %
Forages - Water Surface [3]  50 %
Clutch Size [4]  4
Clutches / Year [1]  1
Fledging [1]  35 days
Incubation [1]  23 days
Mating Display [2]  Ground and non-acrobatic aerial display
Maximum Longevity [1]  6 years
Snout to Vent Length [1]  18 inches (46 cm)
Speed [5]  26.172 MPH (11.7 m/s)
Wing Span [5]  34 inches (.86 m)


Protected Areas

+ Click for partial list (100)Full list (450)

Important Bird Areas

Biodiversity Hotspots


Institutions (Zoos, etc.)

Institution Infraspecies / Breed 
Blackbrook Zoological Park
Kyiv Zoological Park
Moscow Zoological Park
Zagreb Zoo / Zooloski vrt Zagreb

Range Map


External References



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
4Jetz 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
5Alerstam T, Rosén M, Bäckman J, Ericson PGP, Hellgren O (2007) Flight Speeds among Bird Species: Allometric and Phylogenetic Effects. PLoS Biol 5(8): e197. doi:10.1371/journal.pbio.0050197
6Gibson, 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 WWF WildFINDER
Protected Areas provided by Natura 2000, UK data: © Crown copyright and database right [2010] All rights reserved. Ordnance Survey Licence number 100017955
Biological Inventories of the World's Protected Areas in cooperation between the Information Center for the Environment at the University of California, Davis and numerous collaborators.
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License