- Pacific-slope Flycatcher
- Pacific Golden Plover
- Pacific Loon
- Pacific Swallow
- Paddyfield Pipit
- Painted Stork
- Pale-breasted Thrush
- Pale-vented Pigeon
- Pale Crag Martin
- Palestine Sunbird
- Pallas's Gull
- Pallid Swift
- Palm Tanager
- Palm Warbler
- Panamanian Flycatcher
- Parasitic Jaeger
- Pectoral Sandpiper
- Persian Shearwater
- Philadelphia Vireo
- Pied-billed Grebe
- Pied Avocet
- Pied Water Tyrant
- Pileated Woodpecker
- Pin-striped Tit-Babbler
- Pine Grosbeak
- Pine Warbler
- Pink-necked Green Pigeon
- Piping Plover
- Plain-backed Sparrow
- Plain-bellied Emerald
- Plain-breasted Ground Dove
- Plain-brown Woodcreeper
- Plain Prinia
- Plain Xenops
- Prairie Warbler
- Prothonotary Warbler
- Purple-crowned Fairy
- Purple-throated Mountaingem
- Purple Gallinule
- Purple Heron
- Purple Honeycreeper
- Purple Sandpiper
- Purple Sunbird