Knipolegus franciscanus
The Sao Francisco Black Tyrant (*Knipolegus franciscanus*) is a striking member of the Tyrannidae family, endemic to the São Francisco River basin of Brazil. This species exhibits pronounced sexual dimorphism; males are entirely glossy black with a distinctive fiery red iris, measuring around 18 cm in length, while females are duller, presenting a brownish-gray plumage with streaky underparts and subtle rufous highlights in the wings. Often found perched conspicuously on rocky outcrops, its p...
Exclusively found in the semi-arid Caatinga biome of Brazil, the Sao Francisco Black Tyrant prefers dry, rocky scrublands, often near riparian woodlands and riverine gallery forests. It typically inhabits elevations from lowlands up to approximately 800 meters.
Primarily insectivorous, the Sao Francisco Black Tyrant feeds on a variety of insects such as beetles, ants, wasps, flies, and grasshoppers. It captures prey through aerial hawking and sally-gleaning from prominent perches.
The Sao Francisco Black Tyrant is a diurnal species, frequently observed perching conspicuously on exposed rocks or branches, often in open, arid environments. It employs a "sally-gleaning" or "aerial hawking" foraging strategy, darting out from its perch to snatch insects in mid-air or from vege...
The Sao Francisco Black Tyrant is an avian endemic to Brazil, exclusively found within the São Francisco River basin. Its distribution spans parts of central and eastern Brazilian states, including Minas Gerais, Bahia, and Pernambuco. Within this range, it is primarily associated with the semi-ar...
Least Concern
- The "franciscanus" in its scientific name directly refers to the São Francisco River basin, its primary habitat. - Males possess striking ruby-red eyes that contrast vividly with their glossy black plumage, a key identification feature. - Females are notably duller than males, making them a cle...