Acrocephalus palustris
The Marsh Warbler (Acrocephalus palustris) is a small, relatively nondescript Old World warbler, belonging to the family Acrocephalidae. Measuring approximately 12-13.5 cm in length with a wingspan of 17-21 cm and weighing 10-15 grams, its appearance belies its extraordinary vocal talent. Adults feature plain, olive-brown upperparts, contrasting with paler, buffy-white underparts and yellowish-buff flanks. A faint, often inconspicuous supercilium is present, along with pale pinkish-brown legs...
Typically found in dense, tall herbaceous vegetation, often near wetlands but preferring drier ground than its close relatives, including wet meadows, scrub, osier beds, and dense gardens up to modest elevations.
Primarily insectivorous, feeding on a wide variety of insects and their larvae, as well as spiders, gleaned from foliage. Small berries may be consumed in autumn before migration.
Marsh Warblers are diurnal and generally solitary outside the breeding season, becoming highly territorial during nesting. Males establish and defend territories with their elaborate, continuous song, which is a key component of courtship, often delivered from a prominent perch within dense veget...
The Marsh Warbler boasts an extensive breeding range across the Palearctic, stretching from central and eastern Europe, through western Asia, reaching as far east as western Siberia and Kazakhstan. Its breeding distribution often includes lowlands and river valleys, typically below 500 meters, th...
Least Concern
- A single Marsh Warbler can mimic the songs of 70 to 80 different bird species, integrating them seamlessly into its own complex repertoire. - Despite its plain appearance, its song is considered one of the most intricate and beautiful in the Palearctic bird world. - It undertakes one of the lon...