| Common Name | Scientific name |
|---|---|
| Piping Plover | Charadrius melodus |
| Piratic Flycatcher | Legatus leucophaius |
| Pirre Chlorospingus | Chlorospingus inornatus |
| Pirre Hummingbird | Goethalsia bella |
| Pirre Warbler | Basileuterus ignotus |
| Plain Antvireo | Dysithamnus mentalis |
| Plain Chachalaca | Ortalis vetula |
| Plain Leaf-Warbler | Phylloscopus neglectus |
| Plain Pigeon | Patagioenas inornata |
| Plain Xenops | Xenops minutus |
| Plain-breasted Ground-Dove | Columbina minuta |
| Plain-brown Woodcreeper | Dendrocincla fuliginosa |
| Plain-capped Starthroat | Heliomaster constantii |
| Plain-colored Tanager | Tangara inornata |
| Plum-headed Parakeet | Psittacula cyanocephala |
| Plumbeous Hawk | Cryptoleucopteryx plumbea |
| Plumbeous Kite | Ictinia plumbea |
| Plumbeous Pigeon | Patagioenas plumbea |
| Plumbeous Vireo | Vireo plumbeus |
| Plumbeous Warbler | Setophaga plumbea |
| Pomarine Skua | Stercorarius pomarinus |
| Poo-uli | Melamprosops phaeosoma |
| Prairie Falcon | Falco mexicanus |
| Prairie Warbler | Setophaga discolor |
| Prong-billed Barbet | Semnornis frantzii |
RingBase adheres to EURING codes.
