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Lake Bant Tern Colony
The Lake Bant tern colony is a bird colony, breeding colony of common terns (''Sterna hirundo'') at Lake Bant (''Banter See'' in German) in the port city of Wilhelmshaven, north-western Germany. It is the subject of a long-term research project carried out by the Institute of Avian Research (Heligoland Bird Observatory). Location The colony breeds on six concrete islands, which were originally used as a loading dock for the now abandoned U-boat harbour at Banter See. The site is protected as a natural monument of the city. The colony was attracted to the site in 1984 using taped lures, after their previous breeding site had been destroyed. Colony development From an initial 90 breeding pairs the colony grew rapidly to a maximum of 530 pairs in 2005. Following several years of low breeding success, lower juvenile survival and delayed first breeding attempts, the colony was reduced to 430 pairs in 2011. This was most likely due to lack of food; breeding success is highly variable, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Colony
A bird colony is a large congregation of individuals of one or more species of bird that nest or roost in proximity at a particular location. Many kinds of birds are known to congregate in groups of varying size; a congregation of nesting birds is called a breeding colony. Colonial nesting birds include seabirds such as auks and albatrosses; wetland species such as herons; and a few passerines such as weaverbirds, certain blackbirds, and some swallows. A group of birds congregating for rest is called a communal roost. Evidence of colonial nesting has been found in non- neornithine birds ( Enantiornithes), in sediments from the Late Cretaceous (Maastrichtian) of Romania. Variations on colonial nesting in birds Approximately 13% of all bird species nest colonially. Nesting colonies are very common among seabirds on cliffs and islands. Nearly 95% of seabirds are colonial, leading to the usage, seabird colony, sometimes called a rookery. Many species of terns nest in colonie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
