Willow Warbler
Phylloscopus trochilus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderPasseriformes
- FamilyPhylloscopidae (Leaf Warblers)
- GenusPhylloscopus (Leaf Warblers)
- SpeciesPhylloscopus trochilus (Willow Warbler)
The willow warbler (Phylloscopus trochilus) is a very common and widespread leaf warbler which breeds throughout northern and temperate Europe and the Palearctic, from Ireland east to the Anadyr River basin in eastern Siberia. It is strongly migratory, with almost all of the population wintering in sub-Saharan Africa. It is a bird of open woodlands with trees and ground cover for nesting, including most importantly birch, alder, and willow habitats. The nest is usually built in close contact with the ground, often in low vegetation. Like most Old World warblers (Sylviidae), this small passerine is insectivorous. In northern Europe, it is one of the first warblers to return in the spring, though later than the closely related chiffchaff. Wikipedia →
<5% of wildlife watchers report a Willow Warbler sighting in Nyungwe National Park, based on 12 days of visitor records from GBIF citizen-science data.
Closest Relatives at Nyungwe National Park
Red-faced Woodland-Warbler
Phylloscopus laetus
Chubb's Cisticola
Cisticola chubbi
Common Bulbul
Pycnonotus barbatus
Green White-eye
Zosterops stuhlmanni
Black Sawwing
Psalidoprocne pristoptera
Regal Sunbird
Cinnyris regius
African Dusky Flycatcher
Muscicapa adusta
Streaky Seedeater
Crithagra striolata
Variable Sunbird
Cinnyris venustus
White-eyed Slaty Flycatcher
Dioptrornis fischeri
African Stonechat
Saxicola torquatus
Black-faced Apalis
Apalis personata
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
Quick answers
What are the chances of seeing a Willow Warbler in Nyungwe National Park?
About 1% of wildlife watchers report a Willow Warbler sighting in Nyungwe National Park, based on 12 days of visitor records from GBIF citizen-science data.
When is the best time to see Willow Warbler in Nyungwe National Park?
October has the highest sighting rate for Willow Warbler in Nyungwe National Park in our monthly data.