Leptasthenura setaria
The Araucaria Tit-Spinetail (Leptasthenura setaria) is a diminutive and highly specialized ovenbird, measuring approximately 13-14 cm in length, including its notably long tail, and weighing a mere 8-10 grams. This slender passerine is characterized by its pointed, spiky crest, greyish-brown upperparts heavily streaked with dark brown, and whitish underparts often washed with rufous on the flanks. A pale supercilium contrasts with a dark eye-line, adding definition to its small head. Its most...
Primarily inhabits mature *Araucaria angustifolia* forests and mixed *Araucaria*-podocarp woodlands, typically found at higher elevations (800-2,000 meters).
Exclusively insectivorous, primarily consuming small arthropods such as insects and spiders, which it gleans from the bark, needles, and associated epiphytes of *Araucaria* trees.
The Araucaria Tit-Spinetail is a diurnal and perpetually active bird, constantly flitting and gleaning through the dense foliage of *Araucaria* trees. It is an exceptionally agile and acrobatic forager, often observed hanging upside down, clambering along branches, and probing deep into bark crev...
The Araucaria Tit-Spinetail is a resident species, non-migratory and confined to the remaining fragmented stands of *Araucaria angustifolia* forests in southeastern South America. Its core distribution lies within the highlands of southern Brazil, encompassing the states of Santa Catarina, Paraná...
Near Threatened
- The Araucaria Tit-Spinetail is a prime example of convergent evolution, exhibiting feeding behaviors remarkably similar to true tits (family Paridae) despite being an ovenbird. - Its incredibly long, spiny tail feathers are not just for show; they provide balance and support as it gleans insect...