Rusty-crowned babbler
| Rusty-crowned babbler | |
|---|---|
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Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Zosteropidae |
| Genus: | Sterrhoptilus |
| Species: | S. capitalis |
| Binomial name | |
| Sterrhoptilus capitalis (Tweeddale, 1877) | |
The rusty-crowned babbler (Sterrhoptilus capitalis) is a species of bird in the family Zosteropidae. It is native to the southern Philippines on the islands of Mindanao and Dinagat Islands and Basilan. Its natural habitat is tropical moist lowland forest.
Description and taxonomy
Subspecies
Three subspecies are recognized:
- S c. capitalis – Found in Dinagat Islands
- S c. euroaustralis – Found in Mindanao Island excluding the Zamboanga Peninsula
- S c.isabelae – Found on the Zamboanga Peninsula and Basilan
Ecology and behavior
Typically seen singly, in pairs or mixed flocks along with Mindanao blue-fantails, sulphur-billed nuthatches, Philippine bulbuls, brown-tit babbler, Mindanao pygmy babbler, flowerpeckers, sunbirds and other small forest birds. Its diet is presumed to consist primarily of insects and some vegetable matter.
Birds in breeding condition with enlarged gonads are seen in March and June. Immature birds have been seen in February, May and August. Otherwise, any breeding, mating, nesting and fledgling behaviours are unknown. Nest and chicks are undescribed.
Habitat and conservation status
Its natural habitat is tropical moist lowland forest. It is seen on the undergrowth of primary forests or along forest edge. Most Ebird and sight records are in the PICOP Logging Concession in Bislig which has undergone massive deforestation. Its population is believed to be descreasing.
References
- ↑ BirdLife International (2018). "Sterrhoptilus capitalis". IUCN Red List of Threatened Species. 2018 e.T22716207A132110934. doi:10.2305/IUCN.UK.2018-2.RLTS.T22716207A132110934.en. Retrieved 17 November 2021.
- ↑ "IOC World Bird List 6.3". IOC World Bird List Datasets. doi:10.14344/ioc.ml.6.3.
- ↑ Collar, Nigel; Robson, Craig (2020). "Rusty-crowned Babbler (Sterrhoptilus capitalis), version 1.0". Birds of the World.
- ↑ Collar, Nigel; Robson, Craig (2020). "Rusty-crowned Babbler (Sterrhoptilus capitalis), version 1.0". Birds of the World. doi:10.2173/bow.rucbab3.01. ISSN 2771-3105.
- ↑ Allen, Desmond (2020). Birds of the Philippines. Barcelona: Lynx and Birdlife International Field Guides. pp. 296–297.
- ↑ "IUCN Red List of Threatened Species: Sterrhoptilus capitalis". IUCN Red List of Threatened Species. 9 August 2018.
Bibliography
- Collar, N. J. & Robson, C. 2007. Family Timaliidae (Babblers) pp. 70 – 291 in; del Hoyo, J., Elliott, A. & Christie, D.A. eds. Handbook of the Birds of the World, Vol. 12. Picathartes to Tits and Chickadees. Lynx Edicions, Barcelona.
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