- Wallcreeper
- Wandering Albatross
- Wandering Tattler
- Warbling Vireo
- Warbling White-eye
- Warbling White-eye (montanus)
- Water Pipit
- Watkins's Antpitta
- Wattled Jacana
- Waved Albatross
- Wedge-billed Woodcreeper
- Wedge-rumped Storm Petrel
- West Indian Woodpecker
- West Mexican Chachalaca
- West Peruvian Dove
- Western Bluebird
- Western Chat-Tanager
- Western Grebe
- Western Gull
- Western Kingbird
- Western Meadowlark
- Western Osprey
- Western Sandpiper
- Western Spindalis
- Western Tanager
- Western Wood Pewee
- Western Yellow Wagtail
- Whimbrel
- Whiskered Treeswift
- Whiskered Yuhina
- Whistling Heron
- Whistling Warbler
- White-backed Fire-eye
- White-backed Stilt
- White-banded Mockingbird
- White-banded Swallow
- White-banded Tyrannulet
- White-barred Piculet
- White-bearded Manakin
- White-bellied Cuckooshrike
- White-bellied Sea Eagle
- White-bellied Seedeater
- White-bellied Tyrannulet
- White-bellied Woodpecker
- White-bellied Woodstar
- White-bellied Wren
- White-booted Racket-tail
- White-breasted Nuthatch
- White-breasted Thrasher
- White-breasted Waterhen
- White-browed Antbird
- White-browed Blackbird
- White-browed Chat-Tyrant
- White-browed Foliage-gleaner
- White-browed Fulvetta
- White-browed Ground Tyrant
- White-browed Guan
- White-browed Owl
- White-capped Dipper
- White-capped Redstart
- White-cheeked Antbird
- White-cheeked Nuthatch
- White-cheeked Starling
- White-collared Foliage-gleaner
- White-collared Manakin
- White-collared Swift
- White-collared Yuhina
- White-crested Coquette
- White-crested Elaenia
- White-crested Laughingthrush
- White-crested Tyrannulet
- White-crowned Manakin
- White-crowned Parrot
- White-crowned Pigeon
- White-crowned Sparrow
- White-eared Bronze Cuckoo
- White-eared Brown Dove
- White-eared Hummingbird
- White-eared Puffbird
- White-edged Oriole
- White-eyed Foliage-gleaner
- White-eyed Parakeet
- White-eyed Vireo
- White-faced Ibis
- White-faced Robin
- White-fronted Amazon
- White-fronted Ground Tyrant
- White-fronted Whitestart
- White-fronted Woodpecker
- White-headed Bulbul
- White-headed Marsh Tyrant
- White-headed Woodpecker
- White-lined Tanager
- White-lored Euphonia
- White-lored Spinetail
- White-mantled Kingfisher
- White-naped Brushfinch
- White-naped Crane
- White-naped Jay
- White-necked Coucal
- White-necked Jacobin
- White-necked Thrush
- White-plumed Antbird
- White-rumped Monjita
- White-rumped Munia
- White-rumped Sandpiper
- White-rumped Shama
- White-rumped Snowfinch
- White-rumped Swallow
- White-rumped Swiftlet
- White-rumped Tanager
- White-shouldered Antshrike
- White-shouldered Fairywren
- White-sided Flowerpiercer
- White-sided Hillstar
- White-spotted Woodpecker
- White-striped Woodcreeper
- White-tailed Hawk
- White-tailed Jay
- White-tailed Kite
- White-tailed Nuthatch
- White-tailed Tyrannulet
- White-thighed Swallow
- White-throated Antbird
- White-throated Bulbul
- White-throated Crake
- White-throated Fantail
- White-throated Honeyeater
- White-throated Hummingbird
- White-throated Kingbird
- White-throated Kingfisher
- White-throated Magpie-Jay
- White-throated Manakin
- White-throated Mountaingem
- White-throated Quail-Dove
- White-throated Redstart
- White-throated Sierra Finch
- White-throated Spadebill
- White-throated Sparrow
- White-throated Tapaculo
- White-throated Toucan
- White-throated Towhee
- White-throated Treerunner
- White-throated Tyrannulet
- White-throated Woodcreeper
- White-tipped Dove
- White-tipped Plantcutter
- White-tufted Grebe
- White-vented Euphonia
- White-wedged Piculet
- White-whiskered Puffbird
- White-winged Black Tyrant
- White-winged Cinclodes
- White-winged Coot
- White-winged Diuca Finch
- White-winged Dove
- White-winged Magpie
- White-winged Robin
- White-winged Scoter
- White-winged Swallow
- White-winged Tanager
- White-winged Warbler
- White Eared Pheasant
- White Hawk
- White Monjita
- White Wagtail
- White Woodpecker
- Whitehead's Trogon
- Willet
- Williamson's Sapsucker
- Willie Wagtail
- Willow Flycatcher
- Willow Ptarmigan
- Willow Tit
- Wilson's Phalarope
- Wilson's Plover
- Wilson's Snipe
- Wilson's Storm Petrel
- Wilson's Warbler
- Wing-barred Seedeater
- Wood Stork
- Wood Thrush
- Woolly-necked Stork
- Worm-eating Warbler
- Wren-like Rushbird
- Wrentit