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Ardea herodias   Linnaeus, 1758

great blue heron
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Aves | Ciconiiformes | Ardeidae

Environment: milieu / climate zone / depth range / distribution range Ecology

Others; freshwater; brackish.  Boreal

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Northeast Pacific: Canada.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 130 cm TL male/unsexed; (Ref. 94965)

Short description Morphology

Eagle-sized wingspan; grey-blue plumage; long, dagger-like yellow-bill; red thighs (Ref. 94965).

Biology     Glossary (e.g. epibenthic)

Dependent on healthy, uncontaminated coastal wetlands and estuaries for feeding. Wades in shallow water whilst foraging. Forms colonies. Piscivorous. In Florida Bay, natural feeding supplemented by "panhandling" association with humans where they feed on bait fish from locals and developed begging behavior from residents. In Stanley Park Zoo in Vancouver, British Columbia, a large colony is able to persist in close proximity to human activities for over 78 years. In Florida Bay, population decline of 30-40% due to hurricanes were linked to nesting and foraging habitat degradation (Ref. 87784). Colonies in the Strait of Georgia have high rates of reproductive success (Ref. 95040).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Colonies in the Strait of Georgia have high rates of reproductive success (Ref. 95040).

Main reference References | Coordinator | Collaborators

Elliott, J.E., R.W. Butler, R.J. Norstrom and P.E. Whitehead. 1989. (Ref. 95040)

IUCN Red List Status (Ref. 119314)

  Least Concern (LC) ; Date assessed: 01 October 2016

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses


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Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
References
Mass conversion

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GloBI | | Google Books | Google Scholar | Google | ispecies | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Price category (Ref. 80766)