Planet of Birds

American Bittern (Botaurus lentiginosus) Science Article 2 abstract An effective and efficient bird monitoring program is challenging to develop, given the different level of intensity of monitoring and the statistical vigor that monitoring programs must meet to effectively address specific objectives. I evaluated the marsh bird monitoring program established at Agassiz National Wildlife Refuge (AGNWR) […]

American Bittern (Botaurus lentiginosus) Science Article 1 abstract Biometrics, plumage and bare-part colour of 87 Great BitternsBotaurus stellarisfrom the UK,France, Italy, Poland and Belarus, of known sex (sexed by behaviour, DNA or dissection),were analysed to provide reliable sexing and ageing criteria for this little-known species,and to investigate geographical variation in biometrics. Four parameters were analysed: […]

American Bittern (Botaurus lentiginosus) Science Article 4 abstract Nests of American bitterns lentiginosus) marsh hawks (Circus cyaneus), and short-eared owls (Asio u ually found in wetland habitats. Although large marshes containing dense stands of bulrushes (Scirpus), (Typha) , or other wetland vegetation are favored nesting cover , these birds have also been reported to nest […]

American Bittern (Botaurus lentiginosus) Science Article 3 abstract There appears to be almost no detailed information on the behavior associated with copulation in the American Bittern (Botaurus lentiginosus); Palmer (Ed., 1962, Handbook of North American birds, vol. 1, New Haven, Yale Univ. Press) has summarized the fragmentary notes on this species. The comparable behavior of […]