- Wagler's Toucanet
- Wallace's Fruit Dove
- Wallace's Owlet-nightjar
- Wallcreeper
- Wandering Whistling Duck
- Warbling White-eye
- Water Rail
- Wattled Broadbill
- Wayanad Laughingthrush
- Wedge-tailed Eagle
- Wedge-tailed Sabrewing
- West Papuan Lorikeet
- Western Barn Owl
- Western Black-eared Wheatear
- Western Bowerbird
- Western Capercaillie
- Western Cattle Egret
- Western Grasswren
- Western Hooded Pitta
- Western House Martin
- Western Jackdaw
- Western Marsh Harrier
- Western Orphean Warbler
- Western Reef Heron
- Western Rosella
- Western Subalpine Warbler
- Western Yellow Wagtail
- Western Yellow Wagtail (flavissima)
- Whinchat
- Whiskered Pitta
- Whiskered Tern
- Whiskered Treeswift
- Whistling Kite
- White-backed Woodpecker
- White-backed Woodswallow
- White-bellied Blue Robin
- White-bellied Cuckooshrike
- White-bellied Emerald
- White-bellied Minivet
- White-bellied Sea Eagle
- White-bellied Storm Petrel
- White-bellied Thicket Fantail
- White-bibbed Fruit Dove
- White-breasted Ground Dove
- White-breasted Waterhen
- White-browed Piculet
- White-browed Robin
- White-browed Triller
- White-browed Wagtail
- White-capped Bunting
- White-cheeked Bushtit
- White-cheeked Nuthatch
- White-chested Emerald
- White-collared Blackbird
- White-collared Monarch
- White-collared Yuhina
- White-crested Coquette
- White-crested Laughingthrush
- White-crowned Forktail
- White-eared Catbird
- White-eared Hummingbird
- White-eared Monarch
- White-eyed Robin
- White-faced Heron
- White-faced Robin
- White-headed Duck
- White-headed Fruit Dove
- White-headed Pigeon
- White-necked Heron
- White-necked Jacobin
- White-rumped Kingfisher
- White-rumped Robin
- White-rumped Sandpiper
- White-rumped Shama
- White-rumped Vulture
- White-tailed Eagle
- White-tailed Nuthatch
- White-tailed Ptarmigan
- White-tailed Sabrewing
- White-tailed Stonechat
- White-throated Bushtit
- White-throated Caracara
- White-throated Dipper
- White-throated Laughingthrush
- White-throated Nightjar
- White-throated Toucan
- White-throated Toucan (cuvieri)
- White-throated Toucanet
- White-tipped Quetzal
- White-winged Chough
- White-winged Fairywren
- White-winged Fantail
- White-winged Grosbeak
- White-winged Tern
- White's Thrush
- White Stork
- White Tern
- White Wagtail
- White Wagtail (lugens)
- White Wagtail (yarrellii)
- Whooper Swan
- Willet
- Willow Ptarmigan
- Willow Ptarmigan (scotica)
- Willow Warbler
- Wilson's Bird-of-paradise
- Wilson's Storm Petrel
- Wire-tailed Swallow
- Wompoo Fruit Dove
- Wonga Pigeon
- Wood Sandpiper
- Woodchat Shrike
- Woodlark