Sterrhoptilus affinis
The Calabarzon Babbler (*Sterrhoptilus affinis*) is a captivating small passerine, typically measuring between 12-14 cm in length, characterized by its olive-brown upperparts that contrast sharply with its whitish underparts. A key identifying feature for birders is its prominent bright yellow orbital ring, which gives it a perpetually alert and curious expression, complemented by black lores and a subtle greyish cap that subtly fades into the olive back. This species belongs to the family Ti...
Primarily inhabits lowland and foothill primary and secondary broadleaf forests, frequently observed at forest edges and in dense undergrowth from sea level up to approximately 1000 meters elevation.
Primarily insectivorous, feeding on small insects, larvae, and spiders gleaned from foliage and bark; occasionally supplements its diet with small fruits or berries.
The Calabarzon Babbler is an active, diurnal species, frequently encountered in small family groups or, more typically, as an integral member of dynamic mixed-species foraging flocks, diligently moving through the understory and lower canopy. Foraging involves meticulously gleaning insects and la...
The Calabarzon Babbler is an avian jewel endemic to the Philippines, with its primary distribution centered on the island of Luzon, particularly within the provinces comprising the CALABARZON region (Cavite, Laguna, Batangas, Rizal, Quezon), after which it is named. Its restricted range also exte...
Least Concern
- The Calabarzon Babbler is a true Philippine endemic, found exclusively on Luzon, Catanduanes, and Polillo islands. - Its common name, "Calabarzon," directly refers to a specific administrative region on Luzon, highlighting its localized distribution. - It is a social bird, almost always observe...