Saffron Finches recorded per party hr on the Honolulu
Christmas Count, 1944-2014 (see Count
Page), showing sporadic population episodes
since first introduction in the late 1960s. See also Moulton and Scioli (1986). 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/