Oceanic Birds
Oceanic birds found in Micronesia belong to the following families: Diomedeidae, Procellariidae, Phaëthontidae, Pelecanidae, Fregatidae, and Laridae. Following Wynne-Edwards (1935:240) and Murphy (1936:326), these birds may be grouped as inshore birds (Laridae and others), offshore birds (Pelecanidae, Fregatidae and others), and pelagic birds (Diomedeidae, Procellariidae, Phaëthontidae). As shown in [table 2] there are 30 kinds of oceanic birds in Micronesia, 18 kinds that are resident and 12 kinds that are regarded as visitors to the area. Records of nestings are few; field work in the future probably will yield evidence that more kinds of oceanic birds are actually resident in the Micronesian islands.
Table 2. List of Resident and Nonresident Oceanic Birds of Micronesia
Table 2. List of Resident and Nonresident Oceanic Birds of Micronesia
| Genera | Resident kinds | Nonresident kinds |
| Diomedea | 0 | 1 |
| Puffinus | 4 | 1 |
| Pterodroma | 1 | 1 |
| Phaëthon | 2 | 1 |
| Sula | 3 | 0 |
| Fregata | 1 | 1 |
| Larus | 0 | 1 |
| Chlidonias | 0 | 1 |
| Sterna | 2 | 4 |
| Thalasseus | 1 | 0 |
| Procelsterna | 0 | 1 |
| Anoüs | 2 | 0 |
| Gygis | 2 | 0 |