- Wallcreeper
- Warbling Vireo
- Water Pipit
- Water Rail
- Western Bonelli's Warbler
- Western Cattle Egret
- Western House Martin
- Western Jackdaw
- Western Marsh Harrier
- Western Reef Heron
- Western Subalpine Warbler
- Western Swamphen
- Western Yellow Wagtail
- Whinchat
- Whiskered Tern
- White-breasted Nuthatch
- White-crowned Sparrow
- White-throated Sparrow
- White-winged Scoter
- White-winged Tern
- White Stork
- White Wagtail
- White Wagtail (yarrellii)
- Wild Turkey
- Willow Warbler
- Wilson's Snipe
- Winter Wren
- Wood Duck
- Wood Sandpiper
- Wood Warbler
- Woodlark