The Icterine warbler is an Old World warbler in the tree warbler genus Hippolais. It breeds in mainland Europe except the southwest, where it is replaced by its western counterpart, the melodious warbler. It is migratory, wintering in sub-Saharan Africa.
Region
Europe (breeding) and sub-Saharan Africa (wintering)
Typical Environment
Breeds from France and Scandinavia east to western Russia, largely avoiding the Iberian Peninsula and much of the southwest where melodious warbler predominates. Prefers open deciduous woodlands, tree-lined parks and gardens, riparian willow and poplar stands, and hedgerows with scattered tall trees. During migration and winter it uses woodland edges, savanna with trees, and well-vegetated gardens. It forages mostly in the mid to upper canopy, gleaning insect prey from leaves and twigs.
Altitude Range
0–1800 m
Climate Zone
Other
Ease of Keeping
Beginner friendly: 1/5
The icterine warbler is a long-distance migrant that breeds across much of mainland Europe and winters in sub-Saharan Africa. Its rich, varied song often includes mimicry of other bird species. It can be told from the similar melodious warbler by its longer primary projection and slightly greyer legs. It favors leafy deciduous trees, parks, and woodland edges.
Eggs of Icterine warbler MHNT
Temperament
active and somewhat secretive, but sings from exposed perches
Flight Pattern
short rapid wingbeats with swift, direct flight
Social Behavior
Generally solitary or in pairs during the breeding season. Monogamous pairs build a neat, cup-shaped nest in a fork of a shrub or tree. Clutches typically contain 3–6 eggs, and both parents feed the young. Outside breeding, it may join loose mixed flocks in migration and on wintering grounds.
Migratory Pattern
Seasonal migrant
Song Description
A loud, rich, and varied warble that mixes fluty phrases with rattles and chattering notes, often delivered from treetops. Frequently incorporates mimicry of other bird species. Calls include sharp tacks and softer contact notes.
Plumage
Olive-green upperparts with paler greenish mantle and wings edged lighter; underparts pale yellow, brighter on the throat and breast. Feathers smooth and sleek, with a long primary projection visible at rest.
Diet
Primarily consumes insects such as flies, beetles, caterpillars, and spiders, gleaned from foliage and twigs. Will occasionally sally to catch flying insects. In late summer and on migration, may take small berries and other soft fruits opportunistically.
Preferred Environment
Feeds in leafy canopies and outer branches of deciduous trees, along woodland edges, parks, and riversides. In winter, forages in wooded savanna, gardens, and thickets with scattered tall trees.
