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Alternative names: Mountain Sunbird; Jeffery's Sunbird
- Aethopyga jefferyi
Philippines, endemic in northern and central Luzon.
Mid-altitude mountain forest up to 1500 m and sometimes higher.
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, B.L. Sullivan, C. L. Wood, and D. Roberson. 2013. The eBird/Clements checklist of birds of the world: Version 6.8., with updates to August 2013. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- Gill, F and D Donsker (Eds). 2013. IOC World Bird Names (version 3.5). Available at http://www.worldbirdnames.org/.
- BirdForum Opus contributors. (2021) Luzon Sunbird. In: BirdForum, the forum for wild birds and birding. Retrieved 1 August 2021 from https://www.birdforum.net/wiki/Luzon_Sunbird