'Apapanes recorded per party
hr on the Honolulu Christmas Count (see Count Page) in 1944-2014, indicating a significant decline (as also
recorded on the Waipi'o and Volcano Christmas Counts). The peak of
489 recorded on the Honolulu count (cf. E 17:55, 56) may have reflected an
abundance of flowering ohia-lehua trees within
the circle that year. See also Williams (1987) and Ralph (1990). Graphs of Christmas Count data developed as part
of The Birds of the Hawaiian Islands: Occurrence, History, Distribution, and
Status by Robert L. Pyle and Peter Pyle http://hbs.bishopmuseum.org/birds/rlp-monograph/