- Warbling Vireo
- Wattled Jacana
- Western Bluebird
- Western Cattle Egret
- Western Grebe
- Western Gull
- Western Kingbird
- Western Meadowlark
- Western Osprey
- Western Sandpiper
- Western Tanager
- White-bellied Cinclodes
- White-breasted Nuthatch
- White-crowned Pigeon
- White-crowned Sparrow
- White-eared Hummingbird
- White-eyed Vireo
- White-faced Ibis
- White-tailed Kite
- White-throated Sparrow
- White-tipped Dove
- White-tufted Grebe
- White-vented Plumeleteer
- White-winged Dove
- White-winged Parakeet
- White-winged Scoter
- Whooping Crane
- Wild Turkey
- Willet
- Willow Flycatcher
- Wilson's Phalarope
- Wilson's Warbler
- Wood Duck
- Wood Stork
- Wrentit