Fasciated Tiger Heron

The Fasciated Tiger Heron, Tigrisoma fasciatum, is a striking species of heron adorned with fine barring on its upperparts. It is the smallest of the tiger herons, measuring 23–25 inches in length. The adult boasts a black crown, slaty gray face, and a neck and upperparts of black with pale buff stripes. Its underparts range from grayish-cinnamon to warm brown, with gray flanks. The beak is notably shorter and stouter than those of other tiger herons, black above and yellowish-green below, with a slightly arched culmen. The irides are a vivid yellow.

Identification Tips

When identifying the Fasciated Tiger Heron, look for its distinctive barred upperparts and stout beak. The pale buff stripes against the black provide a unique pattern, while the grayish-cinnamon abdomen and gray flanks help differentiate it from similar species. The yellow irides are also a helpful feature for identification.

Habitat

This heron favors the foothills, where it can be found along rocky, swiftly flowing streams. It is typically associated with higher elevations, especially where it coexists with the rufescent tiger heron.

Distribution

The Fasciated Tiger Heron's range extends from Costa Rica through parts of South America, including northwestern Argentina, southeastern Brazil, and Guyana. It has also been recorded as a vagrant in Nicaragua.

Behaviour

A solitary bird, the Fasciated Tiger Heron is often seen alone, though it may congregate with others at a distance in preferred fishing spots. It is known for its patience, standing on the shore or on rocks within the watercourse, neck partly extended, waiting for prey.

Song & Calls

The vocalizations of the Fasciated Tiger Heron remain a mystery, as there is no available information about its calls or song.

Breeding

This heron constructs a platform nest from sticks and lianas, a typical nesting structure for species within its family.

Diet and Feeding

The Fasciated Tiger Heron is a skilled hunter, primarily preying on fish which it catches by a swift stab of its beak. It also supplements its diet with large insects.

Conservation status

Initially listed as Near Threatened in 1988, the Fasciated Tiger Heron's status was updated to Least Concern in 2004 by the IUCN. The population is estimated to be between 1,000–10,000 individuals, with 670–6,700 mature adults. The population trend is currently unknown, and the impact of habitat modifications on the species remains uncertain. However, the bird's extensive range across various countries suggests a degree of stability.

In human culture

Historically, the Fasciated Tiger Heron may have been a food source for indigenous peoples in Panama. Today, it faces the threat of being captured for the pet trade.