The petrel has various color morphs: dark and light, as well as intermediates between the two. Found primarily in the south Pacific, it has been seen in Hawaii. It nests on oceanic islands and atolls, on cliff ledges, ridges or rocky slopes. On some islands, nesting birds are threatened by feral cats and rats.
Also it was recently identified as this species, from what was previously an unidentified Pterodroma species, to be breeding on Round Island, 22 kilometers north of Mauritius, in the Indian Ocean.
- BirdLife International (2016). "Pterodroma heraldica". IUCN Red List of Threatened Species. Version 2016.3. International Union for Conservation of Nature. Retrieved 5 April 2017.
- James, David.J; McAllan, Ian A.W. (2014). "The birds of Christmas Island, Indian Ocean: A review" (PDF). Australian Field Ornithology. 31 (supplement): S46–S47. Retrieved 21 September 2014.
- Brown, R. M.; Jordan, W. C. (2009). "Characterization of polymorphic microsatellite loci from Round Island Petrels (Pterodroma arminjoniana) and their utility in other seabird species". Journal of Ornithology. 150: 925–929. doi:10.1007/s10336-009-0411-5.
- Seabirds, an Identification Guide by Peter Harrison, (1983) ISBN 0-7470-1410-8
- Handbook of the Birds of the World Vol 1, Josep del Hoyo editor, ISBN 84-87334-10-5
- "National Audubon Society" The Sibley Guide to Birds, by David Allen Sibley, ISBN 0-679-45122-6