
Java Sparrows recorded per party hr on the Honolulu
Christmas Count, 1944-2007 (see Count
Page), indicating increases during the 1980s
followed by general declines after a peak in 1990. 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/2009/