Thick-billed Warbler

Thick-billed Warbler

Arundinax aedon

Introduction

A large, unstreaked buff-brown coloured warbler that breeds in a wide range of scrubby habitats in eastern Siberia and Mongolia.

Thick-billed Warbler is an extremely rare visitor to Britain and was added to the British List on the basis of an individual trapped at Fair Isle Bird Observatory, Shetland in 1955. Shetland has dominated the handful of subsequent records.

Key Stats

Status
Very rare
Very rare
Weight
Weight
26g
Seasonality
Seasonality
BTO Records
BTO Records
29 records
Population and distribution stats for:
Population Change
Population Change
No data
Population Size
Population Size
No current data
Distribution Change
Distribution_change
No current data
Population Change
Population Change
No data
Population Size
Population Size
No current data
Distribution Change
Distribution_change
No current data

Movement

Information about Thick-billed Warbler movements and migration based on online bird portals (e.g. BirdTrack), Ringing schemes and tracking studies.

Britain & Ireland movement

View a summary of recoveries in the Online Ringing Report

European movements

EuroBirdPortal uses birdwatcher's records, such as those logged in BirdTrack to map the flows of birds as they arrive and depart Europe. See maps for this species here.

Biology

Lifecycle and body size information for Thick-billed Warbler, including statistics on nesting, eggs and lifespan based on BTO ringing and nest recording data.

Survival and Longevity

Survival is shown as the proportion of birds surviving from one year to the next and is derived from bird ringing data. It can also be used to estimate how long birds typically live.

Classification, names and codes

Taxonomy, names and species codes for Thick-billed Warbler

Classification and Codes

  • Order: Passeriformes
  • Family: Acrocephalidae
  • Scientific name: Arundinax aedon
  • Authority: Pallas, 1776
  • BTO 5-letter code: THBWA
  • Euring code number: 12540

Alternate species names

  • Czech: rákosník tlustozobý
  • Danish: Tyknæbbet Drosselrørsanger
  • Dutch: Diksnavelrietzanger
  • Finnish: paksunokkakerttunen
  • French: Rousserolle à gros bec
  • German: Dickschnabelspötter
  • Hungarian: Vastagcsoru nádirigó
  • Icelandic: Döggsöngvari
  • Lithuanian: Storasnape nendrinuke
  • Norwegian: tykknebbsanger
  • Polish: zaganiacz grubodzioby
  • Portuguese: Felosa-de-bico-grosso
  • Slovak: sedmohlások hrubozobý
  • Spanish: Carricero Picogordo
  • Swedish: tjocknäbbad sångare

More Evidence

More evidence from Conservation Evidence.com

Partners

Birdfacts is based on data collected by volunteers participating in surveys that are organised and funded by BTO, RSPB, Esmée Fairbairn Foundation, JNCC and other partners.
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