This is the most common of Hawaii's native songbirds. Males and females are alike. These birds were rather jumpy as they fed on nectar of flowering trees and were difficult to photograph especially in the rain as here. They feed mostly on the red flowers of the endemic Ohia but this individual was foraging on yellow Mamane flowers. Flower ID is tentative. Corrections welcome. Canon PowerShot SX60 HS.
References:
Fancy, S. G. and C. J. Ralph (1997). Apapane (Himatione sanguinea), version 2.0. In The Birds of North America (A. F. Poole and F. B. Gill, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bna.296
Pratt, D. (2020). Apapane (Himatione sanguinea). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/61450 on 6 February 2020).
Pratt, H.D., Bruner, P., and Berrett, D.G. (1987) A Field Guide to the Birds of Hawaii and the Tropical Pacific. Princeton University Press.
Pyle, R.L., and P. Pyle. 2017. The Birds of the Hawaiian Islands: Occurrence, History, Distribution, and Status. B.P. Bishop Museum, Honolulu, HI, U.S.A. Version 2 (1 January 2017) http://hbs.bishopmuseum.org/birds/rlp-monograph/