Menetries's warbler is a monogamous bird that breeds between April and July (2). Upon arrival at the breeding grounds, the male Menetries's warbler almost immediately starts performing ‘song-flights’ to attract a suitable female. Flying up to four metres above the ground, the male sings and flutters his quivering wings as he ascends, before returning to a perch and repeating the process (3).
Menetries's warbler usually produces one brood each year, although in some regions, such as lowland Azerbaijan, it produces two - one in late May and the next in early July. The nest, which is built by both the male and female over 5 days, is placed up to 90 centimetres off the ground in low grassland, scrub, bushes and young trees. The female lays between 4 and 6 eggs which are incubated by both parents for around 11 to 13 days (2). Menetries's warbler eggs appear glossy white or faintly tinged green, profusely speckled with brown-grey spots (3). Menetries's warbler nests are known to be destroyed by trampling camels and the nestlings may be preyed on by snakes, common magpies, foxes, cats and dogs (2). The young are able to open their eyes around 3 days after hatching and are fed equally by both parents for 10 to 11 days before vacating the nest. Unable to fly, the young take to resting under bushes to hide from predators (3). Menetries's warbler leaves its breeding range between August and October to migrate south for winter (2).
The typically shy, wary and restless Menetries's warbler feeds primarily on arthropods, especially insects and their larvae and eggs, but also on grasshoppers, bugs, moths, butterflies, ants, wasps and beetles (2). These invertebrates are often plucked from stems and foliage as Menetries's warbler forages at low heights in scrub and small bushes (2) (3). Outside of the breeding season, this bird also consumes various berries, fruits and seeds (2).