Holyoak, D. T. (1980) Guide to Cook Island birds. Private copyright, no place of publication given.
Colonies Surveyed (8)
Cook Islands EEZ -
Colony: Takutea Island
Cook Islands EEZ -
Colony: Rarotonga
Cook Islands EEZ -
Colony: Rakahanga
Cook Islands EEZ -
Colony: Pukapuka
Cook Islands EEZ -
Colony: Mitiaro
Cook Islands EEZ -
Colony: Manuae
Cook Islands EEZ -
Colony: Mangaia
Cook Islands EEZ -
Colony: Aitutaki