Pinnated Bittern
Botaurus pinnatus
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Pinnated_bittern
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
The Pinnated Bittern faces severe pressure from wetland drainage and conversion for agriculture and urban development across its South American range. Cattle ranching and rice cultivation have eliminated vast areas of suitable marsh habitat, while water pollution from agricultural runoff degrades remaining wetlands. The species' secretive nature and specific habitat requirements make it particularly vulnerable to fragmentation, as isolated populations struggle to maintain genetic diversity.
Habitat
The Pinnated Bittern inhabits freshwater marshes, reed beds, and shallow wetlands with dense emergent vegetation across South America. It prefers areas with tall grasses and sedges that provide cover for its secretive lifestyle, typically in lowland regions from sea level to moderate elevations.
Other threatened species in Ardeidae
Frequently asked questions
Why is Pinnated Bittern classified as Vulnerable?
Where does Pinnated Bittern live?
What are the main threats to Pinnated Bittern?
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