Certhia jugularis Linnaeus, 1766, Philippines. Twenty-one subspecies.
OTHER COMMON NAMES
English: Yellow-bellied sunbird, yellow-breasted sunbird, black-breasted sunbird, black-throated sunbird; French: Souimanga а dos vert; German: Grьnrьcken-Nektarvogel; Spanish: Nectarina de Lomo Olivo.
4.5 in (11.4 cm); male 0.24–0.37 oz (6.7–10.5 g), female 0.21–0.32 oz (6.0–9.1 g). Dull olive-brown upperparts with contrasting yellow underparts. Metallic forehead, throat, and upper breast. All underparts bright yellow in females.
Myanmar, Thailand, Indochina, Malaysia, southeastern China, Philippines, New Guinea, and northeastern Australia.
Scrub, mangroves, forest, woodland, farmland, plantations, and gardens.
Tame but restless. Often in mixed-species groups. Aggressive. Male displays underneath female, exposing black breast and pectoral tufts while moving head from side to side and calling.
FEEDING ECOLOGY AND DIET
Often feeds low down. Sometimes hovers in front of flowers, leaves, and cobwebs to take nectar, insects, and spiders respectively. Also eats small fruits and pollen.
Oval, purse-shaped nest with hooded side entrance built by female of grass, moss, lichens, and other vegetable matter. One to three grayish eggs incubated for two weeks. Young fledge after further two weeks. In Australia, parasitized by Gould’s bronze cuckoo (Chrysococcyx russatus).
SIGNIFICANCE TO HUMANS
Sometimes nests near or on houses, otherwise none known.
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