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In 1961 the common tern was the first wild bird species identified as being infected with avian influenza, the H5N3 variant being found in an outbreak involving South African birds. [74] Several species of terns have been implicated as carriers of West Nile virus .
The common tern hosts feather lice, which are quite different from those found in Arctic terns, despite the close relationship of the two birds. [112] It may also be infected by parasitic worms, such as the widespread Diphyllobothrium species, the duck parasite Ligula intestinalis , and Schistocephalus species carried initially by fish.
Adult royal tern and Cabot's tern (smaller bird, right) in flight at Core Banks, North Carolina. All white underparts Rodanthe, North Carolina. This is a large tern, second only to the Caspian tern but is unlikely to be confused with this "carrot-billed" giant, which has extensive dark underwing patches.
The Terns are birds of the subfamily Sterninae in the family Laridae, the suborder Lari and order Charadriiformes. Subcategories This category has the following 8 subcategories, out of 8 total.
The white tern, manu-o-Kū, was named Honolulu, Hawaiʻi's official bird on April 2, 2007. New Zealand's Department of Conservation classifies the white tern as Nationally Critical, with populations having been largely decimated by the introduction of feral cats and rats on Raoul Island , the terns' only breeding site in the country. [ 18 ]
The greater crested tern feeds mostly at sea by plunge diving to a depth of up to 1 m (3.3 ft), or by dipping from the surface, and food is usually swallowed in mid-air. Birds may forage up to 10 km (6.2 mi) from land in the breeding season. Prey size ranges from 7–138 mm (0.28–5.43 in) in length and up to 30 g (1.1 oz) in weight.
The white-fronted tern (Sterna striata), also known as tara, sea swallow, [2] black-billed tern, kahawai bird, southern tern, [3] or swallow tail, [4] was first described by Johann Friedrich Gmelin in 1789. [3] A medium-sized tern with an all-white body including underwing and forked tail, with pale grey hues on the mantle and upper side of the ...
The roseate tern (Sterna dougallii) is a species of tern in the family Laridae. The genus name Sterna is derived from Old English "stearn", "tern", [2] and the specific dougallii refers to Scottish physician and collector Dr Peter McDougall (1777–1814). [3] "Roseate" refers to the bird's pink breast in breeding plumage. [4]