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  3. Chimney Swift

One of the 6 swifts on WAnimals

Birds · Caprimulgiformes · Apodidae

Chimney Swift

Chaetura pelagica

Vulnerable

At high risk of extinction in the wild over the medium term.

Spotted something wrong?

The chimney swift is a small brown swift that has tied its fate to that of humans: it originally nested in hollow trees and today breeds almost exclusively in brick chimneys. Its population has fallen by more than sixty per cent in fifty years, and the main cause is the disappearance of those chimneys, which are demolished or lined with smooth metal.

Weight

17 g – 30 g

Size

12 cm – 15 cm

Life expectancy

14 years

Diet

Insectivore

Feeds mainly on insects and other invertebrates.

Activity

Diurnal

Active mainly during the day.

Social structure

Colony

Lives in large concentrations, often for breeding reasons.

Temperate forestGrassland
8countries27parks6same family

Fun facts

  • Its decline has a very specific cause: the brick chimneys it nests in are demolished or lined with smooth metal, and the bird cannot grip that surface. Artificial brick towers are now built specifically for them.
  • Its migratory roosts are an urban spectacle: thousands of swifts spiral above a chimney at dusk and drop inside within minutes, a phenomenon that draws crowds of spectators in several North American cities.
  • It cannot perch on branches or wires: its feet allow it only to cling to vertical surfaces, and it sleeps hanging inside the chimney.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (bird)
Habitat and environment
Towns and cities of eastern North America; it nests in chimneys and hollow vertical structures
Sexual maturity
12 months
Gestation / incubation
20 days
Litter / clutch size
4.5 (average)

Sources consulted: IUCN Red List · Animal Diversity Web · Wikipedia (es)

Where to find it

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The pins mark the parks where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented — showing 10 of 27.

Related species

Other species in the catalogue with the most in common with Chimney Swift — same habitat, park, country, tags or family.

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Same taxonomic family
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How to help

The chimney swift is classified as vulnerable. Organisations such as the IUCN, WWF and the Wildlife Conservation Society work specifically on its conservation and that of its habitat; looking into their programmes is a good starting point if you want to get involved.

It's documented in 10 protected areas — one reason why protecting these places matters for its conservation.

Keep exploring

Based on what we already know about chimney swift.

Share an experience, a fun fact or a tip for seeing the chimney swift.
See full glossary
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See its range on the interactive map→
EvergladesUnited States
Great Smoky MountainsUnited States
AcadiaUnited States
Mammoth CaveUnited States
FundyCanada
Point PeleeCanada
ManuPeru
TambopataPeru
Cordillera AzulPeru
VoyageursUnited States
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CountriesUnited States
ParksEvergladesUnited States
TagsInsectivore
Insectivore
Diurnal
Colonial
Vulnerable
Bird
Temperate forest
Grassland
United States
Canada
Peru
Brazil
Chile
Colombia
Ecuador
Mexico