Where has the Willow Warbler been recorded?

Phylloscopus trochilus occurrence evidence comes from 1,738,129 records in 65 countries and territories, from 1816 to 2026. Most records come from Sweden.

• 1,738,129 records
• 65 places
• 141 years recorded
• Aves class

Observation evidence passport

Compare this animal’s observation pattern

When it is recorded

Peak month: August. Records cluster in the months an animal is present and being looked for, so a summer peak can reflect observer effort as much as the animal.

Records over time

Recording effort has risen steeply almost everywhere since the 1990s, so a rising line usually shows more observers rather than more animals.

Where Willow Warbler has been recorded

The countries below show where occurrence evidence exists for Willow Warbler. They do not define a complete habitat range: survey effort differs by place, and historical or one-off records can appear alongside repeated presence.

Showing the top 40 of 65 places.

Related animals

Others in the family Phylloscopidae.

Common Chiffchaff

1,212,776 records

Wood Warbler

222,615 records

Yellow-browed Warbler

28,319 records

Greenish Warbler

22,377 records

Pallas's Leaf Warbler

12,705 records

Western Bonelli's Warbler

7,268 records

Arctic Warbler

6,620 records

Dusky Warbler

6,132 records