Esmeraldas Woodstar

Chaetocercus berlepschi Simon, 1889

Spanish: Colibrí de Esmeraldas

The Esmeraldas Woodstar (Chaetocercus berlepschi) is a hummingbird in the subfamily Trochilinae (mountain gems, bees and emeralds), tribe Mellisugini (bees). It weighs about 2.0 g and its bill is 15.5 mm long. It is found only in Ecuador. Its IUCN Red List status is Vulnerable, with a decreasing population.

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At a glance

Weight

2.0 g, about 2 paperclips

Bill

15.5 mm

Lives in

Forest

Moves

Stays put all year

Red List status

Vulnerable, decreasing

Endemic

Found only in Ecuador

Its place in the family

1. Family Trochilidae hummingbirds
2. Subfamily Trochilinae mountain gems, bees and emeralds
3. Tribe Mellisugini bees
4. Genus Chaetocercus woodstars

What Chaetocercus share: Among the smallest birds in the world.

Where it lives · 1 country

• Ecuador

Others in the genus Chaetocercus

• Santa Marta Woodstar Chaetocercus astreans
• Rufous-shafted Woodstar Chaetocercus jourdanii
• Gorgeted Woodstar Chaetocercus heliodor
• Little Woodstar Chaetocercus bombus
• White-bellied Woodstar Chaetocercus mulsant

Sources

Names: eBird/Clements Checklist (Cornell Lab of Ornithology). Groups: Dickinson & Remsen (2013) and McGuire et al. (2014). Weight, bill, habitat and movement: AVONET (Tobias et al. 2022, CC BY 4.0). Countries: BirdLife International DataZone, checked against eBird records via GBIF. Red List status and trend: BirdLife International, the IUCN Red List authority for birds.

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