American Bird Conservancyabcbirds.org https://abcbirds.org/article/building-new-colony-threatened-seabirds-kauaʻi/
Building A New Colony For Threatened Seabirds On Kauai
Building A New Colony For Threatened Seabirds On Kauai
Pacific Co-operative Studies Unit, University of Hawai'i at Manoa http://manoa.hawaii.edu/hpicesu/pcsu.htm