Javan Tesia

Tesia superciliaris

The diminutive Javan Tesia (*Tesia superciliaris*) is a striking yet elusive denizen of Indonesia's montane forests, a true gem for keen-eyed birders. This tiny passerine measures only 8-9 cm (3.1-3.5 inches) in length and weighs approximately 6-9 grams, making it one of the smallest birds in its range. Its plumage consists of olive-green upperparts, dusky flanks, and a pale whitish belly, providing excellent camouflage within the dense undergrowth. The most distinctive field mark for identif...

Habitat

Found exclusively in dense montane forest undergrowth, particularly near streams or damp areas, at elevations typically between 800 and 2,500 meters (2,600-8,200 feet) above sea level.

Diet

Feeds primarily on small insects, spiders, and other invertebrates, which it gleans from foliage, twigs, and the forest floor.

Behavior

Active during the day, the Javan Tesia is a highly terrestrial and skulking species, constantly moving through the darkest, lowest parts of the undergrowth, often directly on or just above the ground. It primarily forages by gleaning small insects and other invertebrates from leaves, twigs, and m...

Range

The Javan Tesia is exclusively endemic to the island of Java, Indonesia, making it a highly localized species. It is found across the montane regions of West, Central, and East Java, wherever suitable primary or good secondary forest habitat remains. Its distribution is largely fragmented, confin...

Conservation Status

Least Concern

Fun Facts

- The Javan Tesia is one of the smallest birds found on the island of Java, often overlooked despite its striking appearance. - Its remarkably short, almost non-existent tail gives it a distinctive, plump, and rounded silhouette. - Despite its tiny stature, its song is incredibly loud and far-car...

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