House Finches recorded per party hr on the Honolulu
Christmas Count, 1944-2014 (see Count
Page), indicating a significant increase
through the period. See also Moulton and Scioli (1986),
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/