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The plumage of the Inca tern is the most atypical of the group.. Terns range in size from the least tern, at 23 cm (9.1 in) in length and weighing 30–45 g (1.1–1.6 oz), [1] [2] to the Caspian tern at 48–56 cm (19–22 in), 500–700 g (18–25 oz).
Common tern Conservation status Least Concern (IUCN 3.1) Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Aves Order: Charadriiformes Family: Laridae Genus: Sterna Species: S. hirundo Binomial name Sterna hirundo Linnaeus, 1758 Breeding Resident Non-breeding Passage Vagrant (seasonality uncertain) Synonyms Sterna fluviatilis (Naumann, 1839) Twisted head The ...
Juvenile lesser crested terns resemble same-age Sandwich terns, but with a yellow-orange bill, and paler overall, with only faint dark crescents on the mantle feathers. There are two other orange-billed terns within the range of this species, royal tern and Greater crested tern. Both are much larger and stouter-billed; royal also has a white ...
The white tern or common white tern (Gygis alba) is a small seabird found across the tropical oceans of the world. [2] It is sometimes known as the fairy tern, although this name is potentially confusing as it is also the common name of Sternula nereis.
Terns have red oil droplets in the cone cells of the retinas of their eyes. This improves contrast and sharpens distance vision, especially in hazy conditions. [36] Birds that have to see through an air/water interface, such as terns and gulls, have more strongly coloured carotenoid pigments in the cone oil drops than other avian species. [37]
Laridae is a family of seabirds in the order Charadriiformes that includes the gulls, terns, noddies, skimmers, and white terns (who aren't true terns). It includes around 100 species arranged into 22 genera. They are an adaptable group of mostly aerial birds found worldwide.
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 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] "