Hawaiian Coots recorded per party hr on the Kapa'a Christmas Count, 1971-2014

(see Count Page), showing a declining trend from the 1970s to 2000 followed by an increase from 2005 to 2014. Fluctuations in numbers apart from the trends reflect favorable and unfavorable conditions for breeding, as related primarily to rainfall totals (see also Common Moorhen and Hawaiian Stilt).


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/