Tiny, noticeably smaller than other terns, with quick flicking wingbeats. In breeding plumage, the bill is blood red with a black tip. Food: Small fishes, like sandlances; sand eels; crustaceans, like shrimp and prawns. With aggressive management, the Californian population has rebounded in recent years to about 4,500 pairs, a marked increase from 582 pairs in 1974 when census work began, though it is still listed as an endangered subspecies. A real beach bum, rarely straying far from sand, both on the coast and along inland rivers and lakes. Range data provided by Infonatura/Natureserve and BirdPhotos.com. The map product was based on documented occurrences of listed species and expert knowledge about the distribution of species and suitable habitat. Wingspan: 20 inches. Presumably the population had been greatly reduced by hunting prior to 1885. The Least Tern has a range of nearly half a million square kilometers. The status and distribution of nesting Roseate Terns in The least tern is the smallest American tern, weighing about 1 ounce and measuring about 9 inches in length. Range of the Least Tern during breeding season, based on Breeding Bird Survey data. Least Tern (Sternula antillarum) Range embedded in Google Map Country Map. See the Info section below for more information on each ancillary dataset. The individual species range map needs to be reviewed to This is to let people give us reasons why they agree or disagree.The species' population has increased from 600 in 1973 to r… This species is in danger of extinction throughout all or a significant portion of its range. Its body is slate grey above and white below, with the pointed wings and forked tail characteristic of most terns. The limitations of this book will have you going back to Harrison for the rest of the Terns plus with Saunders, White-cheeked and Crested Terns having ranges not in Europe or North America I'm a bit puzzled by their inclusion, maybe Western Palearctic. Fink, D., T. Auer, A. Johnston, M. Strimas-Mackey, O. Robinson, S. Ligocki, B. Petersen, C. Wood, I. Davies, B. Sullivan, M. Iliff, S. Kelling. Show Breeding Range Codes and IUCN Status Codes. Notice. We have to go through a legal process(45 KB PDF) to make the change. Its pointed wingtips are noticeably darker than those of the roseate tern with which it associates. Map from the Patuxent Wildlife Research Center. Learn more. ALL SPECIES MAPS ON THIS PAGE ARE THE PROPERTY OF SOUTH DAKOTA BIRDS AND BIRDING, and may not be used, copied, or distributed on any other website, blog, or other distribution media without written approval by the site owner. In the interior of the continent, damming of major rivers such as the Missouri in South Dakota have resulted in much of their normal nesting habitat (river sandbars) to be submerged. The Least Tern is the smallest North American tern weighing only one ounce and measuring about 9 inches in length. The Roseate Tern (Sterna dougallii) is listed as endangered in its northeastern range (USFWS 1989) and threatened in its Caribbean range (USFWS 1993). We are the only comprehensive source of information on the status and location of Nebraska’s rarest and most threatened species and natural communities. Identifying Characteristics. Click here to return to the species description page . Changing water levels, direct disturbance by humans, and development have diminished breeding populations. Delisting the least tern can be considered when the interior population reaches 7,000 and is stable for 10 years, as verified by four censuses. The tail is also shorter and has darker outer edges. We now think the tern should be listed as "threatened." It is identified in spring and summer by a white forehead contrasting with a black crown and nape. The general ecol-ogy and status of both populations also have been reviewed in Clapp et al. Montana, which is at the western edge of the range, has a recovery goal of 50 birds. Their numbers and range were greatly reduced in the late 19th and early 20th centuries to where they remained in only a few areas in western Montana. Breeding adults have yellow bill, stumpy yellow feet, white forehead, and black cap. This map animates weekly estimated relative abundance, defined as the expected count on an eBird Traveling Count starting at the optimal time of day with the optimal search duration and distance that maximizes detection of that species in a region on the specified date. The short legs and webbed feet of the male are orange while the females are pale yellow. 2020. eBird Status and Trends, Data Version: 2018; Released: 2020. Terns use a wide array of habitat types for foraging, including large rivers, lakes, ponds, and shallow wetlands. The western population, the California Least Tern, was listed as an endangered species in 1972 with a population of about 600 pairs. That rating was downgraded to Least Concern in 2004 due the size of the Least Tern population. https://doi.org/10.2173/ebirdst.2018, Certain products may be unavailable due to insufficient data. . The species nests in the open near water, both coastally and along major inland rivers. Ancillary data is delivered as zipped ArcGIS Grids. Wingbeats are uniquely rapid and the black leading edge of the outer wing is co… St. Least Tern nests on the ground, where it is vulnerable to predators and to human activity such as beach recreation. Date: 31 December 2018: Source: Least Tern (Sternula antillarum), In Neotropical Birds Online (T. S. Schulenberg, Editor). Length: 8.5-9.5 inches. The goal for the Missouri River system is 2,100 birds. The common tern is the most widespread and abundant tern in New York. Cornell Lab of Ornithology, Ithaca, NY, USA. This species has a light grey back, white underparts, a white, deeply forked tail, and a glossy black cap and nape. Least Tern - South Dakota Birds and Birding Least Tern Range Map. Some of the endangered or threatened species that nest in the Refuge include the Southern Bald Eagle, Least Tern, and Red-cockaded Woodpecker. The aptly named Least Tern—it’s really small—has been bedeviled for decades by habitat degradation. This map animates weekly estimated relative abundance, defined as the expected count on an eBird Traveling Count starting at the optimal time of day with the optimal search duration and distance that maximizes detection of that species in a region on the specified date. The St. Marks River also flows through and influences St. Marks Wildlife Refuge, which provides wintering grounds, nesting areas, and habitat for more than 300 species of birds. The mission of the Nebraska Natural Heritage Program is to develop, manage and distribute scientific information critical to the conservation of Nebraska’s biological diversity. It is slate grey above and white below with a black cap and black extended eyeline. Least Tern: Scientific (Sternula antillarum) Order: CHARADRIIFORMES: Family (Latin) Laridae: Family (English) Gulls, Terns, Skimmers: Other name(s) Regions: NA, MA: Breeding Range Subregions: widespread: The California population had shrunk to 600 pairs by 1973. Usually hovers before plunging into water for tiny prey; does more hovering than most terns. LEAST TERN (Sterna albifrons) "Sea Swallow" and "Least Tern" (326). Endangered. ROYAL TERN (Thalasseus maximus) "Royal tern" (7). The smallest of American terns, the Least Tern is found nesting on sandy beaches along the southern coasts of the United States and up the major river systems far into the interior of the continent. HOLIDAY NOTICE: KDWPT offices will be closed Thursday, Nov. 26 and Friday, Nov. 27 for the Thanksgiving Holiday. A range map covering the breeding and non-breeding range is covered in two tones. The immature and winter adult lack enoug… The smallest of American terns, the Least Tern is found nesting on sandy beaches along the southern coasts of the United States and up the major river systems far into the interior of the continent. Below is a list of the ancillary data available for download. This bird is native to South America, the Caribbean, North America and Central America. That would mean we are concerned about it, but we don't think it is about to go extinct. Status: State threatened. The Least Tern is the smallest North American tern weighing only one ounce and 9 inches in length (21-24 cm). (1983) and Spendelow and Patton (1988). Breeding Range: Interior Least Terns' breeding range stretches across the interior of the United States along the Mississippi, Missouri, and Rio Grande Rivers and their tributaries. Our smallest tern. Adult least terns have a black crown, white forehead and undersurface, pale gray back and wings and a black-tipped yellow-orange bill. It was once called sea swallow for its delicate, graceful and buoyant flights over water. For a given county-by-species combination, the range of the given species covers some portion (from all to very little) of the county. Normal business activity will resume on Monday, Nov. 30. English: Range map of Least tern. Range data provided by Infonatura/Natureserve and BirdPhotos.com. In 1975, the U.S. Fish and Wildlife Service listed the grizzly bear in the lower 48 states as a threatened species under the federal Endangered Species Act. Least Terns are threatened in many parts of its range. Cornell Lab of Ornithology, Ithaca, New York. The long, black outermost wing feathers and the short, d… The bill and feet are yellow. Nesting habitat includes sparsely vegetated river sandbars, sandpits, and reservoir beaches. Nonbreeding Breeding Migration Year-round. Estimated for 2018. It is the smallest tern species in North America. Note: Data are divided up by species modeling regions and you will need 7zip to decompress the files. eBird data from 2014-2018. Often seen flying low over the water, with quick deep wingbeats and shrill cries. Conversely, nesting habitat is more specific; interior least terns construct nests on the ground and require open areas of sand and gravel that are largely devoid of vegetation.Historically, interior least terns nested along all of the large, sandy prairie river systems in Oklahoma. Cayman Islands,Turks and Caicos Islands,Guyana,Peru,Netherlands Antilles,Antigua and Barbuda,Brazil,Ecuador - mainland,Jamaica,Belize,Bahamas,French Guiana,Haiti,Costa Rica,Panama,Puerto Rico,Trinidad and Tobago,Hong Kong,Suriname,Guatemala,Honduras,Nicaragua,Mexico,El Salvador,Cuba,Canada,Dominican Republic,Bermuda,Colombia,Venezuela,United States - Hawaii,British Virgin Islands,United States - mainland, e and s USA to Honduras, Caribbean, n South America. the Bonton traveled most of the present Florida range and the party col-lected at a number of keys that today are important nesting sites. Least Tern Sterna antillarum. We share information with a wide variety of … Life Expectancy: 15 years of age. The U.S. FWS's Threatened & Endangered Species System track information about listed species in the United States The least tern (Sternula antillarum) is a species of tern that breeds in North America and locally in northern South America.It is closely related to, and was formerly often considered conspecific with, the little tern of the Old World.Other close relatives include the yellow-billed tern and Peruvian tern, both from South America.. The population of the Least Tern is estimated at around 70,000 individual birds. The interior least tern is a feisty, swallow-like bird 8-9 inches long with a wingspan of 20 inches. Populations are endangered in many areas because of human impacts on nesting areas, especially competition for use of beaches. Weight: Approximately 1 ounce. Habitat: Broad, sandy, vegetation-free beaches usually located close to an estuary. 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2020 least tern range map