Hesperoburhinus superciliaris
The Peruvian Thick-knee, *Hesperoburhinus superciliaris*, is a cryptic, medium-sized shorebird, measuring approximately 38-43 cm (15-17 inches) in length with a wingspan of 75-80 cm and weighing 400-500 grams. Its plumage is a masterwork of camouflage, featuring sandy-brown and buff streaking across its upperparts, intricately patterned to blend seamlessly with the arid landscapes it inhabits. Distinctive field marks include its strikingly large, bright yellow eyes, a prominent white supercil...
This species thrives in arid and semi-arid coastal plains, desert scrublands, and open dry fields, typically found from sea level up to around 2,000 meters in elevation.
The Peruvian Thick-knee primarily consumes invertebrates, including insects, crustaceans, and mollusks, supplemented by small vertebrates such as lizards and rodents, which it forages for on the ground.
Primarily nocturnal and crepuscular, the Peruvian Thick-knee spends its days camouflaged and motionless, becoming active at dusk to forage. Its foraging strategy involves a distinctive stooping, stalking gait, often darting rapidly to snatch prey from the ground. These birds are generally solitar...
The Peruvian Thick-knee is a resident species found exclusively along the Pacific coast of western South America, primarily within Peru, extending northward into southwestern Ecuador and southward into northern Chile. Its distribution hugs the arid and semi-arid coastal plains and adjacent dry va...
Least Concern
- The "thick-knee" in its name refers to the prominent, thickened tarsal joint on its long legs, an adaptation for its terrestrial lifestyle. - Despite its relatively common status, its exceptional camouflage and nocturnal habits make it notoriously difficult to spot in the wild during daylight h...