Maroon-naped Sunbird Aethopyga guimarasensis Scientific name definitions

9·5 cm. Adult male nominate race has forehead and crown purple-tinged metallic blue-green, hindcrown to mantle maroon-chestnut to blood-red/dark orange-red, back to rump olive-yellow (yellower on rump), upperwing dark brown, wing-coverts and edges of remiges greenish, uppertail-coverts glossy blue-green, tail black with metallic blue-green edges; lores to superciliary area, cheek and ear-coverts black, malar stripe metallic purple, chin and throat to breast black, small orange-red spot on central breast, rest of underparts bright yellow, becoming somewhat paler on rear flanks and vent, often a faint orange tinge on upper belly; iris dark brown, bill blackish; legs dark brown, soles often paler. Female has head and upperparts olive-green, throat and underparts greyer, yellow patch on lower breast. Juvenile undescribed. Race <em>daphoenonota</em> male has more extensive blood-red to dull maroon on mantle than nominate, more extensive and deeper orange on underparts , and wing-coverts and remex edges orange, female also has orange edgings and is greener (and grey) above.

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Until recently considered conspecific with A. flagrans, but differs genetically (1 Hosner, P. A., Á. S. Nyári, and R. G. Moyle (2013). Water barriers and intra-island isolation contribute to diversification in the insular Aethopyga sunbirds (Aves: Nectariniidae). Journal of Biogeography 40(6):1094–1106. Close ) and also in its more extensive (and rather more purplish) glossy part of crown, extending well behind (vs just in front of) eye to cover the cap rather than just the forehead (2); dull russet-maroon hindcrown to mantle (vs dull greenish-gold, continuous with rest of upperparts) (3); much brighter yellow belly (without dirty greyish tinge) with diffuse weak orange centre vs small distinct orange-red vertical belly patch (3). Two subspecies recognized.

Little information on diet; takes nectar and some small arthropods, and probably also some seeds. Forages alone and in pairs; sometimes as part of mixed-species flocks.

A high “tsweet” , repeated.

Not globally threatened (Least Concern). Restricted-range species: confined to the Negros and Panay EBA. Uncommon to rare. This species is very poorly known. There is an urgent need for fieldwork aimed at determining its true status.