Aves |
Ciconiiformes |
Charadriidae
Environment: milieu / climate zone / গভীরতার পরিসীমা / distribution range
বাস্তুসংস্থান
. Temperate
Northeast Pacific: Canada.
Length at first maturity / আকৃতি / Weight / Age
পরিপক্কতা : Lm ? range ? - ? cm
They are agitated with boat distances of less than 30 meters when they are nesting, and less agitated during roosting (Ref. 94991). Nests on the surface of barren rocky islet or beach (Ref. 94991). Rocky-shore specialist concentrated along Pacific coast of northwestern North America (Ref. 87784). Feed mainly on intertidal marine invertebrates, primarily bivalves (clams and mussels) and other mollusks (limpets, whelks, and chitons); and secondarily, crabs, sea urchins, isopods, and barnacles. Contrary to its common name, oysters are rarely part of its diet (Ref. 95118). Uses rocky shores for nesting and rarely breed elsewhere. Nests prone to destruction by tides, particularly during storms; >10% of nests possibly lost to storm surges (Ref. 87784).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | Eggs | ডিম্বধারন ক্ষমতা | Larvae
Chatwin, T.A. 2010 Set-back distances to protect nesting and roosting seabirds off Vancouver Island from boat disturbance. Thesis in MSc in Environment and Management, Royal Roads University, Victoria, British Columbia, Canada, 59p. (সূত্র 94991)
IUCN Red List Status
(সূত্র 130435: Version 2025-1)
CITES status (সূত্র 108899)
Not Evaluated
Not Evaluated
Threat to humans
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
Eggs
Egg development
Larvae
Physiologyঅম্লজান ব্যবহার
Human RelatedStamps, coins, misc.
ইন্টারনেট সুত্র
Estimates based on models
