Oak Titmouse – Pyrrhuloxia

Oak Titmouse

Olive-sided Flycatcher

Olive Sparrow

Orange-crowned Warbler

Orange-winged Parrot (USA)

Orchard Oriole

Osprey

Ovenbird

Pacific Golden-Plover

Pacific Loon

Pacific-slope Flycatcher

Pacific Wren

Painted Bunting

Painted Redstart

Palm Warbler

Parakeet Auklet

Parasitic Jaeger

Pectoral Sandpiper

Peeps (flocks and various)

Pelagic Cormorant

Peregrine Falcon

Phainopepla

Philadelphia Vireo

Pied-billed Grebe

Pigeon Guillemot

Pileated Woodpecker

Pine Grosbeak

Pine Siskin

Pine Warbler

Pink-footed Goose (USA)

Pink-footed Shearwater

Pintailed Whydah (USA)

Pinyon Jay

Piping Plover

Plain-capped Starthroat (USA)

Plain Chachalaca

Plumbeous Vireo

Pomarine Jaeger

Prairie Falcon

Prairie Warbler

Prothonotary Warbler

Purple Finch

Purple Gallinule

Purple Martin

Purple Sandpiper

Purple Swamphen

Pygmy Nuthatch

Pyrrhuloxia