- Wallcreeper
- Water Pipit
- Water Rail
- Wattled Ibis
- Wattled Jacana
- Wattled Starling
- Wedge-billed Woodcreeper
- Welcome Swallow
- Western Barn Owl
- Western Black-headed Batis
- Western Bonelli's Warbler
- Western Cattle Egret
- Western House Martin
- Western Jackdaw
- Western Marsh Harrier
- Western Sandpiper
- Western Subalpine Warbler
- Western Wood Pewee
- Western Yellow Wagtail
- Western Yellow Wagtail (feldegg)
- Western Yellow Wagtail (flavissima)
- Western Yellow Wagtail (iberiae)
- Whinchat
- Whiskered Tern
- White-backed Black Tit
- White-backed Duck
- White-backed Vulture
- White-banded Swallow
- White-bellied Bustard
- White-bellied Canary
- White-bellied Emerald
- White-bellied Go-away-bird
- White-bellied Sea Eagle
- White-bellied Woodstar
- White-booted Racket-tail
- White-breasted Woodswallow
- White-browed Coucal
- White-browed Gnatcatcher
- White-browed Robin-Chat
- White-browed Scrub Robin
- White-browed Sparrow-Weaver
- White-capped Dipper
- White-collared Pigeon
- White-crested Helmetshrike
- White-eyed Slaty Flycatcher
- White-eyed Vireo
- White-faced Heron
- White-faced Whistling Duck
- White-fronted Amazon
- White-fronted Bee-eater
- White-fronted Chat
- White-headed Barbet
- White-headed Buffalo Weaver
- White-headed Pigeon
- White-lined Tanager
- White-naped Honeyeater
- White-necked Jacobin
- White-plumed Honeyeater
- White-shouldered Tanager
- White-sided Flowerpiercer
- White-tailed Trogon
- White-tailed Tropicbird
- White-throated Bee-eater
- White-throated Crake
- White-throated Dipper
- White-throated Toucan
- White-throated Tyrannulet
- White-tipped Dove
- White-whiskered Hermit
- White-winged Brushfinch
- White-winged Dove
- White-winged Swallow
- White-winged Tanager
- White-winged Tern
- White Stork
- White Wagtail
- Whooper Swan
- Willet
- Willie Wagtail
- Willow Warbler
- Wilson's Plover
- Winding Cisticola
- Wire-tailed Manakin
- Wonga Pigeon
- Wood Duck
- Wood Sandpiper
- Wood Stork
- Wood Thrush
- Woodland Kingfisher
- Woodlark