Nisaetus bartelsi
A crested eagle endemic to Indonesia that depends on the forests of Java and, as recent records show, Bali. Nest trees, parental care, and movement space make its protection a long-term commitment.
PANDUANHEWAN · INDONESIA
Javan hawk-eagle vs Flores hawk-eagle: the differences
How do the Javan hawk-eagle (Nisaetus bartelsi) and Flores hawk-eagle (Nisaetus floris) differ? Classification, features, range, diet, size, IUCN status and legal protection, from cited sources.
The Javan hawk-eagle (Nisaetus bartelsi) and the Flores hawk-eagle (Nisaetus floris) are different species in the same genus, Nisaetus. Range in Indonesia — the Javan hawk-eagle: Java and Bali; the Flores hawk-eagle: Lombok, Sumbawa, Komodo, Rinca, Flores and Alor (Nusa Tenggara).
Nisaetus floris
The Flores hawk-eagle (Nisaetus floris) is a white-headed forest eagle endemic to Nusa Tenggara, from Lombok to Alor, and listed as Endangered.
Javan hawk-eagle and Flores hawk-eagle compared
| Aspect | Javan hawk-eagle | Flores hawk-eagle |
|---|---|---|
| Scientific name | Nisaetus bartelsi | Nisaetus floris |
| Indonesian name | Elang Jawa | Elang Flores |
| Class | Aves | Aves |
| Order | Accipitriformes | Accipitriformes |
| Family | Accipitridae | Accipitridae |
| Range in Indonesia | Java and Bali | Lombok, Sumbawa, Komodo, Rinca, Flores and Alor (Nusa Tenggara) |
| Endemic to Indonesia | Yes | Yes |
| Key features | Prominent crest | White head and white patch on upper wing |
| Diet | — | Poorly studied; reported to take village chickens |
| Diet type | carnivore (meat-eater) | carnivore (meat-eater) |
| Reproduction | laying eggs (oviparous) | laying eggs (oviparous) |
| IUCN status | Endangered | Endangered |
| Legal protection | Protected (Regulation P.106/2018) | Protected (Regulation P.106/2018) |
Every cell comes from the sourced data on each animal’s page; an empty cell means the data is not yet available, not that it is absent.
How to tell them apart
- Javan hawk-eagle: Prominent crest.
- Flores hawk-eagle: White head and white patch on upper wing.
Sources
- Cornell Lab eBird — Javan hawk-eagle ↗
- KSDAE / TNGGP — Tahapan perkembangan elang Jawa ↗
- KSDAE / TNGGP — Prawara sang pembeda ↗
- JDIH Kementerian Kehutanan — Permen LHK P.106/MENLHK/SETJEN/KUM.1/12/2018 tentang Jenis Tumbuhan dan Satwa yang Dilindungi (PDF, dengan lampiran) ↗
- BirdLife International DataZone — Javan Hawk-eagle species factsheet ↗
- Vigie-Nature École (MNHN) ↗
- EltonTraits 1.0 (Wilman et al. 2014, Ecology 95:2027), BirdFuncDat.txt ↗
- GBIF Backbone Taxonomy (GBIF) ↗
- BirdLife International DataZone — Flores Hawk-eagle Nisaetus floris species factsheet ↗
- Forktail 20 (Oriental Bird Club) — Gjershaug et al. 2004, The taxonomic status of Flores Hawk Eagle Spizaetus floris (PDF) ↗
- AVONET bird trait database (Tobias et al. 2022) ↗
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