Melozone kieneri
The Rusty-crowned Ground Sparrow (Melozone kieneri) is a striking passerine endemic to western and southwestern Mexico, instantly recognizable by its rich, rusty-cinnamon crown. This medium-sized sparrow, typically measuring 15-17 cm (6-6.7 inches) in length and weighing 25-35 grams, boasts a prominent white supercilium and a bold black malar stripe, creating a distinctive facial pattern against its plain buffy-whitish underparts. Its back is a more subdued olive-brown, often with faint strea...
Found in arid and semi-arid scrublands, tropical deciduous forest undergrowth, and oak woodlands, often favoring rocky canyons and dense thorny thickets. Occurs from near sea level up to approximately 2000 meters in elevation.
Feeds primarily on insects, especially during the breeding season, including beetles, ants, grasshoppers, and caterpillars. Also consumes a significant amount of seeds from grasses and forbs, along with small fruits and berries, particularly during the non-breeding season.
Primarily a ground-dwelling species, the Rusty-crowned Ground Sparrow is diurnal, often most active during the cooler hours of dawn and dusk, meticulously foraging through leaf litter. It employs a characteristic 'double-scratch' technique, kicking backward with both feet simultaneously to expose...
The Rusty-crowned Ground Sparrow is an endemic resident of western and southwestern Mexico, exhibiting no significant migratory movements. Its breeding and year-round range extends from southeastern Sonora and southwestern Chihuahua south along the Pacific slope through Sinaloa, Nayarit, Jalisco,...
Least Concern
- The species name 'kieneri' honors Dr. Louis Charles Kiener, a French malacologist. - It's one of several 'ground sparrows' in the genus *Melozone* known for their terrestrial foraging habits. - Its distinctive 'double-scratch' method of foraging is a hallmark behavior shared with many other tow...