Crossleyia tenebrosa
The Dusky Tetraka (Crossleyia tenebrosa) is a highly cryptic, medium-sized songbird endemic to the humid evergreen forests of eastern Madagascar. Measuring approximately 14-15 cm in length and weighing around 15-20 grams, it presents an unassuming yet distinctive appearance: predominantly dark olive-brown plumage on its upperparts, contrasting with a paler, dull yellowish-olive throat and belly, often with faint streaking. A key field mark, though subtle, is a sometimes visible pale supercili...
This species primarily inhabits the dense understory and mid-story of humid, evergreen primary rainforests in eastern Madagascar, often favoring areas near streams and mossy patches, typically at elevations between 600 and 1800 meters.
The diet of the Dusky Tetraka consists mainly of small invertebrates, including insects and spiders, which it gleans from dense foliage and bark in the forest understory.
Dusky Tetrakas are diurnal but notoriously shy and elusive, typically remaining hidden deep within dense vegetation, making visual observations rare. They are largely solitary or observed in pairs, occasionally joining mixed-species foraging flocks to exploit insect resources. Foraging involves m...
The Dusky Tetraka is strictly endemic to the humid evergreen forests of eastern Madagascar, exhibiting a fragmented distribution due to extensive deforestation. Its known range spans from the Marojejy Massif in the north to areas like Ranomafana National Park and Andringitra Massif in the south-c...
Vulnerable
- The Dusky Tetraka is so incredibly shy and secretive that many experienced ornithologists have only ever heard its song, rarely catching a glimpse. - It is one of Madagascar's true avian enigmas, epitomizing the challenges of studying elusive forest understory birds. - This species belongs to t...