- Wandering Tattler
- Warbling Vireo
- Western Bluebird
- Western Cattle Egret
- Western Grebe
- Western Gull
- Western House Martin
- Western Jackdaw
- Western Kingbird
- Western Marsh Harrier
- Western Meadowlark
- Western Sandpiper
- Western Swamphen
- Western Yellow Wagtail
- Whinchat
- Whiskered Tern
- White-breasted Nuthatch
- White-crowned Sparrow
- White-crowned Wheatear
- White-faced Ibis
- White-tailed Eagle
- White-throated Swift
- White Stork
- White Tern
- White Wagtail
- Whooper Swan
- Wild Turkey
- Willow Ptarmigan
- Willow Tit
- Willow Warbler
- Wilson's Warbler
- Woodchat Shrike
- Woodlark