Animalia > Chordata > Aves > Pelecaniformes > Ardeidae > Egretta > Egretta tricolor

Egretta tricolor (Tricolored Heron)

Synonyms: Ardea tricolor (homotypic); Hydranassa tricolor; Hydranassa tricolor tricolor
Language: French; Spanish

Wikipedia Abstract

The tricolored heron (Egretta tricolor), formerly known in North America as the Louisiana heron, is a small heron. It is a resident breeder from the Gulf states of the United States and northern Mexico south through Central America and the Caribbean to central Brazil and Peru. There is some post-breeding dispersal to well north of the nesting range. Tricolored heron's breeding habitat is sub-tropical swamps. It nests in colonies, often with other herons, usually on platforms of sticks in trees or shrubs. In each clutch, 3–7 eggs are typically laid.
View Wikipedia Record: Egretta tricolor


Egretta tricolor occidentalis (Tricolored heron)
Egretta tricolor ruficollis (Louisiana heron)
Egretta tricolor tricolor (Tricolored heron)

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 10.2038
EDGE Score: 2.41626


Clutch Size [7]  4
Clutches / Year [5]  1
Fledging [2]  35 days
Incubation [5]  21 days
Mating System [8]  Monogamy
Maximum Longevity [5]  18 years
Snout to Vent Length [2]  26 inches (65 cm)
Water Biome [1]  Rivers and Streams, Coastal, Brackish Water
Wing Span [9]  35 inches (.9 m)
Adult Weight [2]  374 grams
Female Weight [6]  334 grams
Male Weight [6]  415 grams
Weight Dimorphism [6]  24.3 %
Breeding Habitat [3]  Wetlands
Wintering Geography [3]  Widespread
Wintering Habitat [3]  Wetlands, Coastal saltmarshes, Agricultural
Diet [4]  Carnivore (Invertebrates), Carnivore (Vertebrates), Piscivore
Diet - Ectothermic [4]  10 %
Diet - Endothermic [4]  10 %
Diet - Fish [4]  60 %
Diet - Invertibrates [4]  20 %
Forages - Ground [4]  20 %
Forages - Water Surface [4]  80 %
Female Maturity [5]  1 year 10 months
Male Maturity [5]  1 year 10 months


Protected Areas


Important Bird Areas

Name Location  IBA Criteria   Website   Climate   Land Use 
Caroni Swamp Trinidad and Tobago A4i, A4iii  
Nicoya Gulf mangroves and coastal areas Costa Rica A1, A4i, A4iii

Biodiversity Hotspots

Prey / Diet

Prey / Diet Overlap


Cathartes aura (Turkey Vulture)[12]
Corvus corax (Northern Raven)[12]
Haliaeetus leucocephalus (Bald Eagle)[12]
Procyon lotor (Raccoon)[12]


Parasitized by 
Contracaecum microcephalum[13]
Eustrongylides ignotus[13]
Galactosomum humbargari[12]
Phagicola diminuta <Unverified Name>[13]

Range Map

External References

NatureServe Explorer


Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2Nathan 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
3Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
4Hamish 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
5de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
6Hartman FA 1961. Locomotor mechanisms of birds. Smithson Misc Collect 143:1–91
7Jetz 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
8Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
9del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
10Cirtwill, Alyssa R.; Eklöf, Anna (2018), Data from: Feeding environment and other traits shape species' roles in marine food webs, Dataset,
11MAJOR, P. (2010). Foraging ecology of the great grebe podicephorus major in Mar Chiquita lagoon (Buenos Aires, Argentina). Ardeola, 57(1), 133-141.
12Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
13Gibson, 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 accessed via on 2023-06-13; License: CC BY 4.0