- Pacific Golden Plover
- Painted Stork
- Pale-breasted Thrush
- Pale-vented Pigeon
- Pale Flycatcher
- Pallid Harrier
- Pallid Swift
- Palm-nut Vulture
- Pampa Finch
- Parasitic Jaeger
- Parrot Crossbill
- Patagonian Mockingbird
- Pearl-spotted Owlet
- Pectoral Sandpiper
- Peregrine Falcon
- Philadelphia Vireo
- Picazuro Pigeon
- Picui Ground Dove
- Pied-billed Grebe
- Pied Avocet
- Pied Crow
- Pied Kingfisher
- Pied Starling
- Pileated Woodpecker
- Pin-tailed Sandgrouse
- Pin-tailed Whydah
- Pine Grosbeak
- Pine Siskin
- Pink-backed Pelican
- Plain-colored Seedeater
- Plain-mantled Tit-Spinetail
- Planalto Hermit
- Plumbeous Kite
- Plumbeous Rail
- Plumbeous Sierra Finch
- Plush-crested Jay
- Pomarine Jaeger
- Puna Ibis
- Puna Miner
- Puna Yellow Finch
- Purple-banded Sunbird
- Purple-crested Turaco
- Purple Finch
- Purple Heron
- Purple Martin
- Purple Roller
- Purple Sandpiper
- Purple Sunbird
- Pygmy Cormorant