Hawaiian Coots recorded per party hr on the Lihue Christmas Count (see

Count Page) in 1972-1992. Fluctuations in numbers reflect favorable and

unfavorable conditions for breeding, as related primarily to rainfall totals (see also

Common Moorhen).

Species account

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/