- Wattled Jacana
- Wedge-billed Woodcreeper
- Wedge-tailed Grass Finch
- Western Cattle Egret
- Whiskered Myiobius
- White-bearded Manakin
- White-crowned Manakin
- White-eyed Parakeet
- White-flanked Antwren
- White-fronted Manakin
- White-headed Marsh Tyrant
- White-lined Tanager
- White-necked Jacobin
- White-necked Thrush
- White-plumed Antbird
- White-throated Manakin
- White-throated Toucan
- White-winged Swallow
- White Stork
- Wing-banded Antbird
- Wing-barred Seedeater