Willow Warbler in The Gambia

Phylloscopus trochilus

AWAITING IMAGE

Overview

The Willow Warbler is a slender, energetic Palearctic migrant that spends the northern winter across sub-Saharan Africa, including The Gambia. Highly active and constantly moving through the canopy, this small warbler undertakes one of the longest annual migrations of any songbird.

Identification

The Willow Warbler has greyish-green to olive upperparts, pale yellowish to off-white underparts, and a distinct pale supercilium (eyebripe) with a subtle dark eyestripe. Its legs are typically pale brown or flesh-coloured, contrasting with the generally darker legs of the very similar Common Chiffchaff. In fresh plumage, especially in autumn, birds show brighter yellow tones across the throat and breast.

Habitat and behaviour

In The Gambia, look for the Willow Warbler in a wide variety of habitats, including open woodland, coastal scrub, riverine thickets, gardens, and mangrove edges. It feeds almost entirely on small insects and spiders, gleaning prey deliberately from the underside of leaves or hovering briefly near branch tips. Its soft "hooeet" contact call often betrays its presence before it is seen.

Migration and wintering

Breeding across northern and temperate Europe and Asia, the entire world population of Willow Warblers migrates to sub-Saharan Africa. Birds begin arriving in West Africa from September onward and remain until early spring. The Gambia provides rich foraging opportunities throughout the dry season, allowing these tiny migrants to rebuild fat reserves before returning north.

Birdwatching in The Gambia

You can encounter Willow Warblers in productive woodland and wetland edges across the country, such as Brufut Woods, Kotu Creek, and along the banks of the River Gambia near Janjanbureh. Scan through mixed foraging flocks in acacia thickets and flowering trees, where these birds search actively for insects alongside resident sunbirds, eremomelas, and flycatchers.

Field note

Separating the Willow Warbler from the Common Chiffchaff in the field requires a careful look at leg colour, wing length, and primary projection. Willow Warblers have longer wings with a longer primary projection, which aids their massive trans-Saharan journey. Lamin can help birders separate subtle migrant warblers and find productive woodland edges across The Gambia.

Would you like to see the Willow Warbler in The Gambia? Tell Lamin your preferred dates and the birds you most want to find. He can shape a private itinerary around the season, habitats and your pace. Check dates and availability.