Ardea cocoi
The Cocoi Heron (Ardea cocoi) is the largest heron species found in South America, a truly majestic wading bird that commands attention across its vast range. Reaching an impressive length of 95-130 cm (37-51 in) with a wingspan of approximately 170-190 cm (67-75 in) and weighing around 2.5 kg (5.5 lb), this species is a striking sight. Adults are primarily grey-blue on their back and wings, contrasted by a white neck, breast, and belly, with a distinctive black cap extending to the nape. Its...
This heron thrives in a wide array of freshwater and brackish aquatic environments, including open marshes, swamps, riverbanks, lakes, lagoons, flooded grasslands, and coastal estuaries. It is primarily found in lowland areas, rarely venturing into higher elevations.
The diet of the Cocoi Heron primarily consists of fish, but also includes amphibians (frogs), insects, small reptiles, crustaceans, and occasionally small mammals, all typically caught by wading and spearing.
Cocoi Herons are generally diurnal, foraging during the day and roosting in trees or dense vegetation at night, often solitary or in small family groups outside the breeding season. Their foraging strategy primarily involves the classic 'stand-and-wait' method, patiently waiting for prey to come ...
The Cocoi Heron boasts a wide and largely continuous distribution across tropical and subtropical South America, predominantly east of the Andes mountain range. Its breeding range extends from eastern Panama (where it is largely a vagrant), through Colombia, Venezuela, and the Guianas, south acro...
Least Concern
- The Cocoi Heron is the largest heron species found in South America, making it a giant among its wading bird relatives. - Despite its vast range, it does not typically migrate long distances, instead showing more localized movements in response to water levels and food availability. - It is clo...