Buden D.W. 1999. The birds of Sapwauhfik Atoll, with first record of the Grey Wagtail Motacilla cinerea, from the Federated States of Micronesia. Bulletin of the British Ornithologists' Club 119 (4): 261-270. Publication Year 1999 Colonies Surveyed (9) Micronesian EEZ - Colony: Bigen Karakar View Colony Micronesian EEZ - Colony: Wat View Colony Micronesian EEZ - Colony: Pikepe View Colony Micronesian EEZ - Colony: Pikenmetkow View Colony Micronesian EEZ - Colony: Peina View Colony Micronesian EEZ - Colony: Ngatik View Colony Micronesian EEZ - Colony: Jirup View Colony Micronesian EEZ - Colony: Dekehnman View Colony Micronesian EEZ - Colony: Uataluk View Colony