Large-billed Reed Warbler (Acrocephalus orinus)
Illustration redrawn by AI from a real photograph

Large-billed Reed Warbler

Acrocephalus orinus Oberholser, 1905

24 gWeight

The large-billed reed warbler (Acrocephalus orinus) is an Old World warbler in the genus Acrocephalus.

Most records: Thailand, Tajikistan, India

Least Concern

Where and when it's recorded

Large-billed Reed Warbler has been recorded at 7 of the 8,171 birding hotspots we track, in 4 countries and regions.

Records by month Northern Hemisphere

Where it's recorded most

  1. Nam Kham Nature ReserveThailand4 records
  2. Bueng Boraphet Non-hunting AreaThailand4 records
  3. ) [Rushan (general area)]Tajikistan3 records
More places
  1. Laem Phak Bia – Environmental Research & Development ProjectThailand3 records
  2. [Khorog Botanical Garden]Tajikistan2 records
  3. Nalsarovar Bird SanctuaryIndia2 records
  4. Baikka Beel Wetland SanctuaryBangladesh1 record

Countries and regions with the most records

ThailandTajikistanIndiaBangladesh

eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.

About

The large-billed reed warbler (Acrocephalus orinus) is an Old World warbler in the genus Acrocephalus. The species has been dubbed as "the world's least known bird". It was known from a single specimen collected in India in 1867 and rediscovered in the wild in Thailand in 2006.

Excerpt from Wikipedia, CC BY-SA 4.0 · authors · Read more on Wikipedia

Questions

How big is the Large-billed Reed Warbler?

The Large-billed Reed Warbler weighs around 24 g.

Where does the Large-billed Reed Warbler live?

Its breeding range: Oriental: northeastern Afghanistan (Timmins et al. 2009). It is most often recorded in Thailand, Tajikistan and India.

Is the Large-billed Reed Warbler endangered?

The IUCN Red List classifies the Large-billed Reed Warbler as Least Concern.

What does the Large-billed Reed Warbler eat?

Main food: Insects & other invertebrates.

What family is the Large-billed Reed Warbler in?

It belongs to the family Reed Warblers & Allies (Acrocephalidae), order Passerines (Passeriformes).

At a glance

Weight
24 g
Habitat
Wetland
Diet
Insects & other invertebrates
Lifestyle
Perches in trees
Migration
Migratory
Conservation
Least Concern
More measurements
Wing
58 mm
Tail
55 mm
Bill
17 mm
Tarsus
22 mm

Averages from the AVONET dataset; length from field guides where available.

Range

Oriental: northeastern Afghanistan (Timmins et al. 2009)

Breeding range, IOC World Bird List 15.2

Classification

Order
Passerines Passeriformes
Family
Reed Warblers & Allies Acrocephalidae
Genus
Acrocephalus

Other birds in the genus Acrocephalus

Basra Reed WarblerBasra Reed WarblerAcrocephalus griseldisCape Verde WarblerCape Verde WarblerAcrocephalus brevipennisGreater Swamp WarblerGreater Swamp WarblerAcrocephalus rufescensLesser Swamp WarblerLesser Swamp WarblerAcrocephalus gracilirostrisMadagascar Swamp WarblerMadagascar Swamp WarblerAcrocephalus newtoniSeychelles WarblerSeychelles WarblerAcrocephalus sechellensisRodrigues WarblerRodrigues WarblerAcrocephalus rodericanusGreat Reed WarblerGreat Reed WarblerAcrocephalus arundinaceusOriental Reed WarblerOriental Reed WarblerAcrocephalus orientalisClamorous Reed WarblerClamorous Reed WarblerAcrocephalus stentoreusAustralian Reed WarblerAustralian Reed WarblerAcrocephalus australisMillerbirdMillerbirdAcrocephalus familiaris
Large-billed Reed Warbler

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Free to use with credit: “Illustration: Bird Album (birdalbum.com)”. Drawn by AI from a reference photo by James Eaton. ↗

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