Common Mynas recorded per party hr on the Honolulu
Christmas Count, 1944-2014 (see Count
Page). The shift in numbers during the
mid-1960s may pertain to increased effort in counting roost sites (see
text). Number generally declinined slowly from 1990 to 2014. 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/