This paper documents petrels of the Darkrumped Petrel complex (Pterodroma phaeopygia/sandwichensis) off the Hawaiian Islands in 2007–2011, including typical individuals of the endemic nesting species, Hawaiian Petrel (P. sandwichensis), and two individuals that could be variants of that species or perhaps Galapagos Petrels (P. phaeopygia). We summarize and discuss criteria for the at-sea identification of these two similar taxa.
Citation:
Pyle, P., D.L. Webster, and R.W. Baird. 2011. Notes on Petrels of the Dark-Rumped Petrel Complex (Pterodroma phaeopygia/sandwichensis) in Hawaiian Waters. North American Birds 65(2): 364-367.
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