Asthenes moreirae
The Itatiaia Spinetail (Asthenes moreirae) is a distinctive and elusive furnariid endemic to the high-altitude montane regions of southeastern Brazil. Measuring approximately 18 cm (7.1 inches) in length and weighing 18-24 grams, this medium-sized passerine is characterized by its dull brownish upperparts, often with a subtle rufous wash on the crown. A key identification mark is the rufous patch on its lesser wing coverts, contrasting with its otherwise streaky whitish throat and buffy under...
This spinetail exclusively inhabits high-altitude grasslands (campos de altitude), shrubby montane edges, and stunted forest patches, primarily above 1,800 meters, extending up to 2,800 meters, within its restricted Brazilian range. It favors areas with dense bamboo clumps and rocky outcrops for ...
Its diet consists primarily of small insects and other arthropods, which it expertly gleans from foliage, twigs, and bark within its dense, high-altitude habitat. Foraging typically occurs at lower to mid-levels of vegetation.
The Itatiaia Spinetail is typically observed singly or in pairs, often skulking low within dense vegetation, making it challenging to spot. It forages actively among shrubs, bamboo, and rocky crevices, gleaning insects and other arthropods from foliage and bark. Pairs are known to be territorial,...
The Itatiaia Spinetail is strictly endemic to the Serra da Mantiqueira mountain range in southeastern Brazil, specifically found across parts of Minas Gerais, Rio de Janeiro, and São Paulo states. Its distribution is highly fragmented and confined to montane habitats, primarily above 1,800 meters...
Near Threatened
- The Itatiaia Spinetail is a true high-altitude specialist, found almost exclusively above 1,800 meters (6,000 feet) in southeastern Brazil. - Despite its name, its tail feathers are not as sharply pointed or "spiny" as those of some other members of the Asthenes genus. - Its existence was only ...