Planet of Birds

Least Bittern (Ixobrychus exilis) Science Article 5 abstract Call-response surveys were conducted to better delineate and estimate the population of least bitterns (Ixobrychus exilis) in southern Manitoba, Canada. Other marsh bird species whose populations are believed to be declining due to wetland loss throughout, or in parts of, their range were also surveyed; these included […]

Least Bittern (Ixobrychus exilis) Science Article 7 abstract Call-response surveys were conducted to better delineate and estimate thepopulation of the nationally threatened least bittern (Ixobrychus exilis) and their habitatrequirements in southern Manitoba, Canada. Other marsh bird species whose populationsare believed to be declining due to wetland loss throughout, or in parts of, their rangewere also […]

Least Bittern (Ixobrychus exilis) Science Article 2 abstract This Conservation Assessment was prepared to compile the published and unpublished information and serves as a Conservation Assessment for the Eastern Region of the Forest Service. USDA Forest Service, Eastern Region, USDA Forest Service, Eastern Region Download article download full text (pdf)

Least Bittern (Ixobrychus exilis) Science Article 3 abstract Habitat selection and reproductive effort of least bitterns (Ixobrychus exilis) weremonitored in 2001 and 2002 at Mingo National Wildlife Refuge (Mingo) in southeastMissouri and 2001 through 2004 at Agassiz National Wildlife Refuge (Agassiz) innorthwest Minnesota. The main objective was to study variation in the breeding ecologyof least […]

Least Bittern (Ixobrychus exilis) Science Article 6 abstract Unlike most herons, bitterns are considered to be noncolonial nesters. Literature records of the nesting dispersion of the Least Bittern (lxobrychus exilis) support this view. Beecher (1942) reported densities ranging from 1 nest in 39.87 acres (0.06 nests per ha) to 4 nests in 1.38 acres (1.7 […]

Least Bittern (Ixobrychus exilis) Science Article 1 abstract In Illinois, this species is an uncommon migrant and summer resident. Recent recordsinclude the following counties: Carroll, Cass, Coles, Cook, Crawford, DuPage, Fulton,Grundy, Henry, Kane, Kendall, Lake, Lawrence, Lee, Marshall, Mason, Massac,McHenry, Putnam, Rock Island, Sangamon, Tazewell, Vermilion, Will, Williamson,Winnebago. Christopher J. Whelan, Center for Biodiversity. Un. […]

Least Bittern (Ixobrychus exilis) Science Article 4 abstract Evidence for a partial prenuptial moult in the Little Bittern Ixobrychus minutus is reported for the firsttime, and is based on both live and museum specimens. The prenuptial moult, which is probablyundertaken in the African winter quarters shortly before the spring migration, involves body feathersand often some […]