- Wallcreeper
- Water Pipit
- Water Rail
- Weka
- Western Barn Owl
- Western Cattle Egret
- Western House Martin
- Western Jackdaw
- Western Marsh Harrier
- Whinchat
- White-bellied Sea Eagle
- White-chinned Petrel
- White-faced Heron
- White-fronted Tern
- White-rumped Munia
- White-throated Babbler
- White-throated Dipper
- White Stork
- White Wagtail
- Whitehead
- Willow Warbler
- Wood Duck
- Woodlark
- Wrybill