Red-whiskered Bulbuls recorded per party hr on the Honolulu Christmas Count,

1944-2014 (see Count Page), indicating increasing trends following introduction in

the mid-1960s, followed by fluctuating populations in the 1990-2010s. See also van Riper et al. (1979), Williams (1983a, 1987), Moulton and Scioli (1986), and Ralph (1990).


Species account


Literature Cited


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