#0628 · 🐦 birds
Willow Warbler
🇳🇱 Fitis ·Phylloscopus trochilus
8 photos from iNaturalist (Creative Commons) · credits & licences
what is it?
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.
base stats
Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).
fun facts
- Spotted 441 times in the Netherlands on iNaturalist.
- 35,256 observations worldwide on iNaturalist.
- Scientifically named in 1758 (268 years ago).
fact sheet
- English
- Willow Warbler
- Nederlands
- Fitis
- scientific name
- Phylloscopus trochilus
- class
- Aves
- order
- Passeriformes
- family
- Phylloscopidae
- IUCN Red List
- LC · least concern
- sightings in NL
- 441
- sightings in Europe
- 22,140
- sightings worldwide
- 35,256
- GBIF records in NL
- 333,053
- weight
- —
- length
- —
- lifespan
- —
- named
- 1758
IUCN in Dutch: niet bedreigd. Blank means the sources don't say.
relatives· Phylloscopidae
#0591 📷 9Common Chiffchaff
🇳🇱 Tjiftjaf
Phylloscopus collybita
LC 👀 1.1k in NL
#0762 📷 8Wood Warbler
🇳🇱 Fluiter
Phylloscopus sibilatrix
LC 👀 42 in NL
#0779 📷 10Yellow-browed Warbler
🇳🇱 Bladkoning
Phylloscopus inornatus
LC 👀 35 in NL
#0799 📷 10Hume's Leaf Warbler
🇳🇱 Humes Bladkoning
Phylloscopus humei
LC 👀 25 in NL
#0825 📷 7Pallas's Leaf Warbler
🇳🇱 Pallas' Boszanger
Phylloscopus proregulus
LC 👀 16 in NL
#0880 📷 7Iberian Chiffchaff
🇳🇱 Iberische Tjiftjaf
Phylloscopus ibericus
LC 👀 8 in NL
#0885 📷 8Dusky Warbler
🇳🇱 Bruine Boszanger
Phylloscopus fuscatus
LC 👀 7 in NL
#0926 📷 10Greenish Warbler
🇳🇱 Grauwe Fitis
Phylloscopus trochiloides
LC 👀 4 in NL
Sources: iNaturalist taxon 117055, Wikidata Q27239, GBIF 2493052, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.