Setophaga chrysoparia
The Golden-cheeked Warbler (Setophaga chrysoparia) is a diminutive yet striking songbird, measuring approximately 12-13 cm (4.7-5.1 inches) in length, weighing 9-10 grams (0.32-0.35 oz), and boasting a wingspan of 17-19 cm (6.7-7.5 inches). Males are instantly recognizable by their brilliant golden-yellow cheeks bordered by a distinct black eye-line, a contrasting black crown, throat, and upperparts, and a clean white belly marked with streaky black flanks. Females are similar but duller, wit...
This species exclusively breeds in mature, mixed Ashe Juniper (Juniperus ashei) and oak (Quercus spp.) woodlands, typically found on steep slopes and canyons in central Texas. These unique woodlands provide both nesting material from the juniper bark and abundant insect prey from the diverse canopy.
The Golden-cheeked Warbler's diet consists almost exclusively of small arthropods, including insects (caterpillars, beetles, ants) and spiders, which it primarily gleans from the foliage and bark of trees.
Golden-cheeked Warblers are diurnal and highly active, spending their days meticulously foraging for insects. They employ a specialized gleaning technique, meticulously picking invertebrates from the foliage and bark of oaks and junipers, often in the mid to upper canopy. Males arrive on the bree...
The Golden-cheeked Warbler's breeding range is uniquely restricted to the Edwards Plateau and associated Cross Timbers regions of central Texas, primarily south of a line from Austin to San Angelo, encompassing roughly 33 counties. Its historical breeding range may have extended slightly further ...
Endangered
- The Golden-cheeked Warbler is the only bird species that breeds exclusively within the state of Texas. - Its nests are largely constructed from shredded strips of Ashe Juniper bark, a material critical for its nesting success. - The male's distinctive song is often syllabified as "Bzzzz-zee-zee...