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- Common_Tern abstract "The Common Tern (Sterna hirundo) is a seabird of the tern family Sternidae. This bird has a circumpolar distribution, its four subspecies breeding in temperate and subarctic regions of Europe, Asia and North America. It is strongly migratory, wintering in coastal tropical and subtropical regions. Breeding adults have light grey upperparts, white to very light grey underparts, a black cap, orange-red legs, and a narrow pointed bill. Depending on the subspecies, the bill may be mostly red with a black tip or all black. There are a number of similar species, including the partly sympatric Arctic Tern, which can be separated on plumage details, leg and bill colour, or vocalisations.Breeding in a wider range of habitats than any of its relatives, the Common Tern nests on any flat, poorly vegetated surface close to water, including beaches and islands, and it readily adapts to artificial substrates such as floating rafts. The nest may be a bare scrape in sand or gravel, but it is often lined or edged with whatever debris is available. Up to three eggs may be laid, their dull colours and blotchy patterns providing camouflage on the open beach. Incubation is by both sexes, and the eggs hatch in around 21–22 days, longer if the colony is disturbed by predators. The downy chicks fledge in 22–28 days. Like most terns, this species feeds by plunge-diving for fish, either in the sea or in freshwater, but molluscs, crustaceans and other invertebrate prey may form a significant part of the diet in some areas.Eggs and young are vulnerable to predation by mammals such as rats and American mink, and large birds including gulls, owls and herons. Common Terns may be infected by lice, parasitic worms, and mites, although blood parasites appear to be rare. Its large population and huge breeding range mean that this species is classed as being of Least Concern, although numbers in North America have declined sharply in recent decades. Despite international legislation protecting the Common Tern, in some areas populations are threatened by habitat loss, pollution or the disturbance of breeding colonies.".
- Common_Tern binomialAuthority Carl_Linnaeus.
- Common_Tern class Bird.
- Common_Tern conservationStatus "LC".
- Common_Tern conservationStatusSystem "IUCN3.1".
- Common_Tern family Tern.
- Common_Tern genus Sterna.
- Common_Tern kingdom Animal.
- Common_Tern order Charadriiformes.
- Common_Tern phylum Chordate.
- Common_Tern synonym "Sterna fluviatilis (Naumann, 1839)".
- Common_Tern thumbnail Common_tern_with_fish.jpg?width=300.
- Common_Tern wikiPageExternalLink 327.pdf.
- Common_Tern wikiPageExternalLink lnbahia.pdf.
- Common_Tern wikiPageExternalLink Common_Tern.html.
- Common_Tern wikiPageExternalLink cote-sa03.pdf.
- Common_Tern wikiPageExternalLink common_tern.
- Common_Tern wikiPageExternalLink i0700id.html.
- Common_Tern wikiPageID "239842".
- Common_Tern wikiPageRevisionID "605057254".
- Common_Tern binomial "Sterna hirundo".
- Common_Tern binomialAuthority "Linnaeus, 1758".
- Common_Tern classis Bird.
- Common_Tern familia Tern.
- Common_Tern filename "Sterna-hirundo-002.ogg".
- Common_Tern genus "Sterna".
- Common_Tern hasPhotoCollection Common_Tern.
- Common_Tern name "Common Tern".
- Common_Tern ordo Charadriiformes.
- Common_Tern phylum Chordate.
- Common_Tern rangeMap "CommonTernmap.png".
- Common_Tern rangeMapAlt "Map showing the breeding range of Sterna hirundo , and wintering areas .".
- Common_Tern regnum "Animalia".
- Common_Tern species "S. hirundo".
- Common_Tern status "LC".
- Common_Tern statusSystem "IUCN3.1".
- Common_Tern synonyms "Sterna fluviatilis (Naumann, 1839)".
- Common_Tern title "Common Tern".
- Common_Tern subject Category:Articles_containing_video_clips.
- Common_Tern subject Category:Birds_of_Asia.
- Common_Tern subject Category:Birds_of_Cameroon.
- Common_Tern subject Category:Birds_of_Europe.
- Common_Tern subject Category:Birds_of_Puerto_Rico.
- Common_Tern subject Category:Birds_of_South_Australia.
- Common_Tern subject Category:Birds_of_Ukraine.
- Common_Tern subject Category:Birds_of_Western_Australia.
- Common_Tern subject Category:Birds_of_Western_Sahara.
- Common_Tern subject Category:British_Isles_coastal_fauna.
- Common_Tern subject Category:Sterna.
- Common_Tern type Animal100015388.
- Common_Tern type Bird101503061.
- Common_Tern type BirdsOfAsia.
- Common_Tern type BirdsOfEurope.
- Common_Tern type BirdsOfPuertoRico.
- Common_Tern type BirdsOfSouthAustralia.
- Common_Tern type BirdsOfWesternAustralia.
- Common_Tern type Chordate101466257.
- Common_Tern type LivingThing100004258.
- Common_Tern type Object100002684.
- Common_Tern type Organism100004475.
- Common_Tern type PhysicalEntity100001930.
- Common_Tern type Vertebrate101471682.
- Common_Tern type Whole100003553.
- Common_Tern type Animal.
- Common_Tern type Bird.
- Common_Tern type Eukaryote.
- Common_Tern type Species.
- Common_Tern type Animal.
- Common_Tern type BiologicalLivingObject.
- Common_Tern type Bird.
- Common_Tern type EukaryoticCell.
- Common_Tern type Organism.
- Common_Tern comment "The Common Tern (Sterna hirundo) is a seabird of the tern family Sternidae. This bird has a circumpolar distribution, its four subspecies breeding in temperate and subarctic regions of Europe, Asia and North America. It is strongly migratory, wintering in coastal tropical and subtropical regions. Breeding adults have light grey upperparts, white to very light grey underparts, a black cap, orange-red legs, and a narrow pointed bill.".
- Common_Tern label "Common Tern".
- Common_Tern sameAs Sterna_hirundo.
- Common_Tern sameAs 1282.
- Common_Tern sameAs kKA6C.
- Common_Tern sameAs m.01jsmq.
- Common_Tern sameAs Common_Tern.
- Common_Tern wasDerivedFrom Common_Tern?oldid=605057254.
- Common_Tern depiction Common_tern_with_fish.jpg.
- Common_Tern isPrimaryTopicOf Common_Tern.
- Common_Tern name "Common Tern".