Aves |
Charadriiformes |
Laridae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Others; freshwater. Tropical
Western Central Atlantic and Northeast Pacific:
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 36.0 cm TL male/unsexed; (Ref. 8812); max. published weight: 212.00 g (Ref. 356)
Culmen: 2.99 cm; tarsus: 3.175 cm; wing: 26.3 cm.
Total Length: 18 to 21 cm; Wingspan: 30 to 33 cm (Ref. 8812). Estuarine. Found on bay and nearshore (Ref. 116102). Surface seizing; dipping; coastal (Ref. 356). A surface nester, usually builds nest in trees. One of the few species that nest and forage in inland habitats, and move to the coast during non-breeding season. Colonial; distance between pairs may be >100m but nest sites still clumped with many other suitable nesting areas unutilized. Vulnerable to oil spill as a piscivore; saw 50% decline in population from 1989 in Prince William Sound after the Exxon Valdez oil spill (Ref. 87784).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lepage, D. 2007 Avibase -the World Bird Database. http://www.bsc-eoc.org/avibase/avibase.jsp [accessed 09/07/2007]. (Ref. 7816)
IUCN Red List Status
(Ref. 130435: Version 2025-2 (Global))
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
FAO - Publication: search | FishSource |
Tools
More information
Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
Internet sources
Estimates based on models
Fishing Vulnerability (Ref. 71543) |
Low to moderate vulnerability (26 of 100). |
Price category (Ref. 80766): |
Unknown. |