- Pacific Antwren
- Pacific Golden Plover
- Pacific Hornero
- Pacific Parrotlet
- Paddyfield Pipit
- Painted Stork
- Pale-billed Flowerpecker
- Pale-billed Woodpecker
- Pale-breasted Thrush
- Pale-crested Woodpecker
- Pale-edged Flycatcher
- Pale-legged Hornero
- Pale-mandibled Aracari
- Pale-tailed Barbthroat
- Pale-vented Pigeon
- Pale-winged Starling
- Pale-winged Trumpeter
- Pale Chanting Goshawk
- Pale Flycatcher
- Pallas's Gull
- Pallid Harrier
- Pallid Swift
- Palm-nut Vulture
- Palm Tanager
- Panama Flycatcher
- Papyrus Gonolek
- Paramo Ground Tyrant
- Parasitic Jaeger
- Patagonian Mockingbird
- Pauraque
- Peach-fronted Parakeet
- Pearl-spotted Owlet
- Pearled Treerunner
- Peg-billed Finch
- Peregrine Falcon
- Peruvian Booby
- Peruvian Pelican
- Peruvian Racket-tail
- Peruvian Sierra Finch
- Pheasant-tailed Jacana
- Philadelphia Vireo
- Piapiac
- Picazuro Pigeon
- Picui Ground Dove
- Pied-billed Grebe
- Pied Avocet
- Pied Bush Chat
- Pied Crow
- Pied Kingfisher
- Pied Plover
- Pied Starling
- Pin-tailed Sandgrouse
- Pin-tailed Whydah
- Pine Grosbeak
- Pink-backed Pelican
- Pink-footed Goose
- Pink-footed Puffback
- Piratic Flycatcher
- Plain-backed Antpitta
- Plain-backed Pipit
- Plain-brown Woodcreeper
- Plain-colored Seedeater
- Plain Prinia
- Plumbeous Ibis
- Plumbeous Kite
- Plumbeous Pigeon
- Plumbeous Rail
- Plumbeous Sierra Finch
- Plush-crested Jay
- Pomarine Jaeger
- Pririt Batis
- Prothonotary Warbler
- Puna Ibis
- Puna Plover
- Puna Snipe
- Puna Teal
- Purple-bibbed Whitetip
- Purple-crowned Fairy
- Purple-rumped Sunbird
- Purple-throated Carib
- Purple-throated Mountaingem
- Purple-throated Woodstar
- Purple Gallinule
- Purple Grenadier
- Purple Heron
- Purple Honeycreeper
- Purple Roller
- Purple Sandpiper
- Purple Sunbird
- Purplish Jay
- Pygmy Cormorant
- Pygmy Falcon