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. In view of this recent occurrence of Least Terns at Brantley Lake, Reclamation consulted with the Service, pursuant to the Endangered Species Act (ESA), and was issued a Biological Opinion (BO; consultation #2-22-03-F-171) from the Service on 14 April 2006 for the Pecos River dam operations. 1-3, perhaps rarely more. 1997). Least tern … Breeding adults have yellow bill, stumpy yellow feet, white forehead, and black cap. Interior Least Tern adults with characteristic dark bill tip and plumage. Interior Least Terns: Preservation Through Innovation and Partnerships . Interior Least Terns are: slightly smaller than a robin; 9 inches long from … They overwinter in marine coastal areas throughout the Pacific coast of southern Mexico and along eastern coasts of Mexico, Central and South America, south to northern Argentina and southern Brazil … The Least Tern is the smallest tern in North America. Least tern. These battles led to an endangered listing for “Interior Least Terns,” defined as any Least Tern nesting more than 50 miles from the Gulf of Mexico. The least tern is a colonial nester which means that they like to build their nest and raise their young close to other terns in a large colony. Least terns are the smallest of the North American terns; adult length of 21-24 cm and a … The interior population, which once inhabited all the major river systems in the middle of the country, evolved to take advantage of constantly changing rivers and fish concentrated in pools by retreating summer flows. Other close relatives include the yellow-billed tern and Peruvian tern, both from South America. The interior least tern is an integral part of the … Federally endangered interior least terns (Sternula antillarum) nest on bare or sparsely vegetated sandbars on midcontinent river systems. As … 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. Our staff organized the first range-wide population survey of the Interior Least Tern; in the near future, the species may be removed from the endangered species list. 2016 Interior Least Tern and Piping Plover Report for the lower Platte River, Nebraska Page 4 ACKNOWLEDGEMENTS We extend special thanks to our 2016 … They are believed to migrate in small family groups and feed in water bodies along the way. During migration Least Terns have appeared feeding in aquatic habitats throughout the United States. It breeds on sandy coasts and river sandbars in temperate to tropical regions worldwide except South America. Least terns are monogamous (meaning the male and female stay together as a pair for the entire breeding season). Forages by flying over water, hovering, and plunging to catch prey just below water's surface. Interior Least Tern Monitoring Results 2007 – Brantley Lake, New Mexico 1. The Interior Least Tern is an energetic, swallow-like bird with a deeply forked tail and slender wings. Often seen with … Anyone working with least or little terns (Sternula albifrons) anywhere in the world is invited to join. These small shorebirds average 8-10 inches in length with a wingspan of 20 inches. Interior least terns feed mostly on small fish caught by skimming the surface of the water or by making dives from the air. Least Terns are Nearctic-Neotropical migratory birds that are widely distributed across North America during the breeding season. Spring migration is thought to be rather quick as birds are eager to get to their breeding habitat. 5. Both adults take turns incubating the 2-3 egg clutch for … Sometimes dips down to take prey from surface of water or land, and may catch insects in flight. Although these sub-species are generally recognized, recent evidence indicates that terns hatched on the Texas coast sometimes breed inland. Interior Least Tern. Descriptive identifiers include a black crowned head with a snowy white underside and forehead. 1992; Smith & Renken 1993), changes in vegetation from controlled water flow below dams (Thompson et al. Current distribution is probably similar to historic distribution because the Niobrara … The interior least tern was federally listed as endangered on June 27, 1985, primarily due to the loss of nesting habitat as a result of dramatic alterations (channelization and impoundment) of important river systems; however, a recently completed five-year review recommends delisting least terns due to recovery.
2020 interior least terns