- Wahlberg's Eagle
- Water Rail
- Waved Albatross
- Wedge-tailed Eagle
- Welcome Swallow
- Western Cattle Egret
- Western Emerald
- Western House Martin
- Western Jackdaw
- Western Marsh Harrier
- Western Orphean Warbler
- Western Rock Nuthatch
- Western Sandpiper
- Western Subalpine Warbler
- Western Yellow Wagtail
- Whiskered Tern
- White-backed Vulture
- White-bellied Mountaingem
- White-bellied Sunbird
- White-bellied Woodstar
- White-bibbed Manakin
- White-booted Racket-tail
- White-browed Robin-Chat
- White-browed Sparrow-Weaver
- White-capped Tanager
- White-cheeked Pintail
- White-eared Barbet
- White-fronted Amazon
- White-naped Brushfinch
- White-necked Jacobin
- White-plumed Honeyeater
- White-sided Flowerpiercer
- White-throated Dipper
- White-throated Magpie-Jay
- White-throated Sparrow
- White-tipped Dove
- White-vented Plumeleteer
- White-winged Snowfinch
- White Stork
- White Wagtail
- Wild Turkey
- Willet
- Willie Wagtail
- Willow Flycatcher
- Wilson's Warbler
- Wood Sandpiper
- Woodland Kingfisher
- Woodlark
- Wrinkled Hornbill