- Wallcreeper
- Water Pipit
- Water Rail
- Wattled Crane
- Wattled Jacana
- Wattled Starling
- West Papuan Lorikeet
- Western Barn Owl
- Western Black-eared Wheatear
- Western Capercaillie
- Western Cattle Egret
- Western Crowned Pigeon
- Western Gull
- Western House Martin
- Western Jackdaw
- Western Marsh Harrier
- Western Meadowlark
- Western Subalpine Warbler
- Western Swamphen
- Western Yellow Wagtail
- Whinchat
- Whiskered Tern
- White-backed Duck
- White-bellied Parrot
- White-breasted Woodswallow
- White-cheeked Pintail
- White-cheeked Turaco
- White-crested Guan
- White-crested Laughingthrush
- White-crested Turaco
- White-eared Catbird
- White-faced Whistling Duck
- White-headed Buffalo Weaver
- White-headed Bulbul
- White-headed Vulture
- White-naped Crane
- White-rumped Shama
- White-shouldered Starling
- White-spectacled Bulbul
- White-tailed Eagle
- White-throated Dipper
- White-throated Kingfisher
- White-throated Laughingthrush
- White-throated Toucan
- White Stork
- White Wagtail
- White Wagtail (yarrellii)
- White Woodpecker
- Whooper Swan
- Willow Ptarmigan
- Willow Ptarmigan (scotica)
- Willow Tit
- Willow Warbler
- Wompoo Fruit Dove
- Wonga Pigeon
- Wood Duck
- Wood Sandpiper
- Woodchat Shrike
- Woodlark
- Wreathed Hornbill
- Writhed Hornbill