Leaden Antwren (Myrmotherula assimilis)
Illustration redrawn by AI from a real photograph

Leaden Antwren

Myrmotherula assimilis Pelzeln, 1868

9–10 cmLength9.3 gWeight

The leaden antwren (Myrmotherula assimilis) is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds".

Busiest months: October · Most records: Peru, Brazil, Bolivia

Least Concern

Where and when it's recorded

Leaden Antwren has been recorded at 9 of the 8,171 birding hotspots we track, in 3 countries and regions.

Records by month Southern Hemisphere

Where it's recorded most

  1. Muyuna Amazon LodgePeru47 records
  2. Reserva Natural PalmaríBrazil45 records
  3. Explorama LodgePeru13 records
More places
  1. Área Protegida y Reserva Natural AquicuanaBolivia11 records
  2. ExplorNapo LodgePeru8 records
  3. Riberalta – HamburgoBolivia2 records
  4. ExplorNapo Lodge – Amazon Canopy WalkwayPeru2 records
  5. Tahuayo LodgePeru2 records
  6. Rio Branco – Ramal do NocaBrazil1 record

Countries and regions with the most records

PeruBrazilBolivia

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 leaden antwren (Myrmotherula assimilis) is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Bolivia, Brazil, Colombia, and Peru.

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

Questions

How big is the Leaden Antwren?

The Leaden Antwren is about 9–10 cm long and weighs around 9.3 g.

Where does the Leaden Antwren live?

Its breeding range: South America: central, southern Amazonia. It is most often recorded in Peru, Brazil and Bolivia.

When is the best time to see the Leaden Antwren?

At the hotspots we track, it is recorded most in October (Southern Hemisphere).

Is the Leaden Antwren endangered?

The IUCN Red List classifies the Leaden Antwren as Least Concern.

What does the Leaden Antwren eat?

Main food: Insects & other invertebrates.

What family is the Leaden Antwren in?

It belongs to the family Antbirds (Thamnophilidae), order Passerines (Passeriformes).

At a glance

Length
9–10 cm
Weight
9.3 g
Habitat
Forest
Diet
Insects & other invertebrates
Lifestyle
Perches in trees
Migration
Resident (barely migrates)
Conservation
Least Concern
More measurements
Wing
52 mm
Tail
30 mm
Bill
16 mm
Tarsus
16 mm

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

Range

South America: central, southern Amazonia

Breeding range, IOC World Bird List 15.2

Classification

Order
Passerines Passeriformes
Family
Antbirds Thamnophilidae
Genus
Myrmotherula

Other birds in the genus Myrmotherula

Moustached AntwrenMoustached AntwrenMyrmotherula ignotaPygmy AntwrenPygmy AntwrenMyrmotherula brachyuraGuianan Streaked AntwrenGuianan Streaked AntwrenMyrmotherula surinamensisAmazonian Streaked AntwrenAmazonian Streaked AntwrenMyrmotherula multostriataPacific AntwrenPacific AntwrenMyrmotherula pacificaCherrie's AntwrenCherrie's AntwrenMyrmotherula cherrieiKlages's AntwrenKlages's AntwrenMyrmotherula klagesiStripe-chested AntwrenStripe-chested AntwrenMyrmotherula longicaudaYellow-throated AntwrenYellow-throated AntwrenMyrmotherula ambiguaSclater's AntwrenSclater's AntwrenMyrmotherula sclateriWhite-flanked AntwrenWhite-flanked AntwrenMyrmotherula axillarisSilvery-flanked AntwrenSilvery-flanked AntwrenMyrmotherula luctuosa
Leaden Antwren

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

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