Aves |
Ciconiiformes |
Ardeidae
Environment: milieu / climate zone / গভীরতার পরিসীমা / distribution range
বাস্তুসংস্থান
; স্বাদু পানি; ঈষৎ লোনা . Boreal
Northeast Pacific: Canada.
Length at first maturity / আকৃতি / Weight / Age
পরিপক্কতা : Lm ?  range ? - ? cm Max length : 130 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (সূত্র 94965)
Eagle-sized wingspan; grey-blue plumage; long, dagger-like yellow-bill; red thighs (Ref. 94965).
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).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | Eggs | ডিম্বধারন ক্ষমতা | Larvae
Colonies in the Strait of Georgia have high rates of reproductive success (Ref. 95040).
Elliott, J.E., R.W. Butler, R.J. Norstrom and P.E. Whitehead. 1989. (সূত্র 95040)
IUCN Red List Status
(সূত্র 130435: Version 2024-2)
CITES status (সূত্র 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
হাতিয়ার
আরো তথ্য
Population dynamicsবৃদ্ধিMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionপ্রাচুর্য Life cycleপ্রজনন পরিপক্কতা ডিম্বধারন ক্ষমতা ডিম ছাড়া EggsEgg developmentLarvae Physiologyঅম্লজান ব্যবহার
Human RelatedStamps, coins, misc.
ইন্টারনেট সুত্র
Estimates based on models
Fishing Vulnerability
Very high vulnerability (78 of 100).