# Gray-rumped Treeswift

> Gray-rumped Treeswift (Hemiprocne longipennis). The grey-rumped treeswift belongs to Hemiprocnidae rather than the true swift family and may be seen perched as well as flying.

Source: https://panduanhewan.org/en/species/hemiprocne-longipennis/ · Updated 1 October 2026 · English · Bahasa Indonesia: https://panduanhewan.org/id/spesies/hemiprocne-longipennis/
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**Review status:** This guide was compiled from the listed species sources and observation records; it has not been reviewed by a taxonomic specialist. GBIF records are neither a census nor proof of native range.

## Quick answer

The Gray-rumped Treeswift (*Hemiprocne longipennis*) is a bird in the family Hemiprocnidae. In Indonesia, observation records come mainly from Sulawesi, Sumatra, Java. Diet: eats flying insects caught in the air (insectivore); a carnivore. IUCN Red List status: Least Concern.

| Fact | Value |
|---|---|
| Scientific name | *Hemiprocne longipennis* |
| Indonesian name | Tepekong jambul |
| Group | Birds |
| Family | Hemiprocnidae |
| Observation records | Sulawesi, Sumatra, Java |
| Taxonomic group | Apodiformes |
| GBIF records | 4,628 human-observation records, 2016–2026 |
| Data retrieved | 2026-09-23 |
| IUCN status | Least Concern · [IUCN Red List (via GBIF)](https://www.gbif.org/species/2477451) · checked 1 October 2026 |
| Diet type | Carnivore (meat-eater) — eats flying insects caught in the air (insectivore) · [AVONET bird trait database (Tobias et al. 2022)](https://figshare.com/articles/dataset/AVONET_morphological_ecological_and_geographical_data_for_all_birds_Tobias_et_al_2021_Ecology_Letters_/16586228) |
| Reproduction | Laying eggs (oviparous) · [Vigie-Nature École (MNHN)](https://www.vigienature-ecole.fr/en/node/352) |
| Active | Diurnal (active by day) · [EltonTraits 1.0 (Wilman et al. 2014, Ecology 95:2027), BirdFuncDat.txt](https://esapubs.org/archive/ecol/E095/178/BirdFuncDat.txt) |

## What is the Gray-rumped Treeswift?

Gray-rumped Treeswift refers to Hemiprocne longipennis, in the genus Hemiprocne, family Hemiprocnidae, and order Apodiformes. The scientific name follows the accepted taxon in the GBIF Backbone Taxonomy. Common names can vary between places; the scientific name distinguishes this species from relatives.

Evidence: [GBIF Backbone Taxonomy — accepted taxon](https://www.gbif.org/species/2477451)

## What is known about the Gray-rumped Treeswift?

The grey-rumped treeswift belongs to Hemiprocnidae rather than the true swift family and may be seen perched as well as flying.

Read that fact alongside the scientific name and species source, not as proof from an unclear photograph. Populations, ages and taxonomic limits can differ; when identification is uncertain, record the broader group.

Evidence: [Species account — background reading](https://en.wikipedia.org/wiki/Hemiprocne%20longipennis)

## How many Indonesian records name the Gray-rumped Treeswift?

When checked on 2026-09-23, the GBIF search returned 4,628 human-observation records from Indonesia under this species name for 2016–2026. That is a count of indexed records, not an estimate of population, abundance or unique individuals. Observation effort can vary by location, and the count may change as records are added or identifications revised.

Evidence: [GBIF occurrence search — Indonesia, human observations, 2016–2026](https://api.gbif.org/v1/occurrence/search?country=ID&speciesKey=2477451&basisOfRecord=HUMAN_OBSERVATION&year=2016%2C2026&limit=0&facet=stateProvince&facetLimit=7)

## Where were observations reported?

Place labels appearing in the results include Sulawesi, Sumatra, Java. They are labels attached to records, not a complete range map or evidence that the species occurs only there. Some labels may be broad or inconsistent. Check the underlying records before using the location information for field decisions.

Evidence: [GBIF occurrence search — Indonesia, human observations, 2016–2026](https://api.gbif.org/v1/occurrence/search?country=ID&speciesKey=2477451&basisOfRecord=HUMAN_OBSERVATION&year=2016%2C2026&limit=0&facet=stateProvince&facetLimit=7)

## How can you observe the Gray-rumped Treeswift?

Record the date, broad location, voice and visible plumage without approaching nests or young. A clear, distant photograph is more useful than disturbing a bird for a closer view. A well-documented sighting helps others check the identification without turning one encounter into a conservation-status claim.

## Explore related animals

To explore this group further, compare Gray-rumped Treeswift with House Swift, Cave Swiftlet, Glossy Swiftlet. These links reflect a shared genus, family, order, class or catalogue group; taxonomic proximity does not imply identical habitat needs or conservation status.

## Scientific classification of the Gray-rumped Treeswift

| Rank | Name |
|---|---|
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| Order | Apodiformes |
| Family | Hemiprocnidae |
| Genus | *Hemiprocne* |
| Species | *Hemiprocne longipennis* |

Source: [GBIF Backbone Taxonomy](https://www.gbif.org/dataset/d7dddbf4-2cf0-4f39-9b2a-bb099caae36c)

## Common questions about the Gray-rumped Treeswift

### What is the scientific name of the Gray-rumped Treeswift?

The scientific name of the Gray-rumped Treeswift is *Hemiprocne longipennis*, in the family Hemiprocnidae and the order Apodiformes. In Indonesian it is called Tepekong jambul.

### What kind of animal is the Gray-rumped Treeswift?

The Gray-rumped Treeswift is a bird in the family Hemiprocnidae. By diet it is a carnivore (meat-eater): a eats flying insects caught in the air (insectivore).

### Where does the Gray-rumped Treeswift live in Indonesia?

Observation records of the Gray-rumped Treeswift summarised in this guide mainly come from Sulawesi, Sumatra, Java. That list is not a complete range map.

### What does the Gray-rumped Treeswift eat?

The Gray-rumped Treeswift is a eats flying insects caught in the air (insectivore). That makes it a carnivore (meat-eater). Source: [AVONET bird trait database (Tobias et al. 2022)](https://figshare.com/articles/dataset/AVONET_morphological_ecological_and_geographical_data_for_all_birds_Tobias_et_al_2021_Ecology_Letters_/16586228).

### How does the Gray-rumped Treeswift reproduce?

The Gray-rumped Treeswift reproduces by laying eggs (oviparous). Source: [Vigie-Nature École (MNHN)](https://www.vigienature-ecole.fr/en/node/352).

### Is the Gray-rumped Treeswift nocturnal?

The cited source records the Gray-rumped Treeswift as diurnal (active by day). Source: [EltonTraits 1.0 (Wilman et al. 2014, Ecology 95:2027), BirdFuncDat.txt](https://esapubs.org/archive/ecol/E095/178/BirdFuncDat.txt).

See also [the list of nocturnal and diurnal animals in Indonesia](https://panduanhewan.org/en/species/nocturnal-and-diurnal-animals/).

### What is the scientific classification of the Gray-rumped Treeswift?

Scientific classification of the Gray-rumped Treeswift: kingdom Animalia, phylum Chordata, class Aves, order Apodiformes, family Hemiprocnidae, genus *Hemiprocne*, species *Hemiprocne longipennis*.

Source: [GBIF Backbone Taxonomy](https://www.gbif.org/dataset/d7dddbf4-2cf0-4f39-9b2a-bb099caae36c), adjusted to the ranks commonly used in school biology.

### Is the Gray-rumped Treeswift endangered?

No, according to the global IUCN assessment. On the IUCN Red List, the Gray-rumped Treeswift is listed as Least Concern: it does not qualify for a threatened category or for Near Threatened in the global assessment. Source: [IUCN Red List (via GBIF)](https://www.gbif.org/species/2477451), checked 1 October 2026.

This global category is separate from legal protection in Indonesia. To check whether the Gray-rumped Treeswift is a protected species, consult the current national list of [protected species](https://panduanhewan.org/en/species/protected/) or contact the local [BKSDA](https://panduanhewan.org/en/bksda-offices/) (natural resources conservation office).

## Sources & references

1. [GBIF Backbone Taxonomy — accepted taxon](https://www.gbif.org/species/2477451)
2. [GBIF occurrence search — Indonesia, human observations, 2016–2026](https://api.gbif.org/v1/occurrence/search?country=ID&speciesKey=2477451&basisOfRecord=HUMAN_OBSERVATION&year=2016%2C2026&limit=0&facet=stateProvince&facetLimit=7)
3. [iNaturalist — exact species taxon and community observations](https://www.inaturalist.org/taxa/6536)
4. [Species account — background reading](https://en.wikipedia.org/wiki/Hemiprocne%20longipennis)
5. [AVONET bird trait database (Tobias et al. 2022)](https://figshare.com/articles/dataset/AVONET_morphological_ecological_and_geographical_data_for_all_birds_Tobias_et_al_2021_Ecology_Letters_/16586228)
6. [Vigie-Nature École (MNHN)](https://www.vigienature-ecole.fr/en/node/352)
7. [EltonTraits 1.0 (Wilman et al. 2014, Ecology 95:2027), BirdFuncDat.txt](https://esapubs.org/archive/ecol/E095/178/BirdFuncDat.txt)
8. [GBIF Backbone Taxonomy (GBIF)](https://www.gbif.org/dataset/d7dddbf4-2cf0-4f39-9b2a-bb099caae36c)

## Keep exploring

- [House Swift](https://panduanhewan.org/en/species/apus-nipalensis/)
- [Cave Swiftlet](https://panduanhewan.org/en/species/collocalia-linchi/)
- [Glossy Swiftlet](https://panduanhewan.org/en/species/collocalia-esculenta/)
- [Lesser Frigatebird](https://panduanhewan.org/en/species/fregata-ariel/)

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Cite: PanduanHewan. (2026). Gray-rumped Treeswift. PanduanHewan.org. https://panduanhewan.org/en/species/hemiprocne-longipennis/