Species starting with W
Index built 10 November 2026
- Wagner's Viper Montivipera wagneri CR
- Walden's Hornbill Rhabdotorrhinus waldeni EN
- Walkerana phrynoderma Indirana phrynoderma EN
- Wattled Curassow Crax globulosa EN
- Waved Albatross Phoebastria irrorata CR
- Weakfish Cynoscion regalis EN
- West Indian Ocean coelacanth Latimeria chalumnae CR
- Western gorilla Gorilla gorilla CR
- Western leopard toad Sclerophrys pantherina EN
- Western Nimba toad Nimbaphrynoides occidentalis CR
- Western ringtail possum Pseudocheirus occidentalis CR
- Western swamp turtle Pseudemydura umbrina CR
- Westland Petrel Procellaria westlandica EN
- Whale shark Rhincodon typus EN
- White Cockatoo Cacatua alba EN
- White warty-back pearly mussel Plethobasus cicatricosus CR
- White-backed Vulture Gyps africanus CR
- White-bellied Cinclodes Cinclodes palliatus CR
- White-bellied Heron Ardea insignis CR
- White-bellied musk deer Moschus leucogaster EN
- White-bellied pangolin Phataginus tricuspis EN
- White-bellied spider monkey Ateles belzebuth EN
- White-browed nuthatch Sitta victoriae EN
- White-cheeked spider monkey Ateles marginatus EN
- White-headed Duck Oxyura leucocephala EN
- White-headed langur Trachypithecus poliocephalus CR
- White-headed Vulture Trigonoceps occipitalis CR
- White-rumped Vulture Gyps bengalensis CR
- White-shouldered Ibis Pseudibis davisoni CR
- White-throated Grasswren Amytornis woodwardi EN
- White-throated guenon Cercopithecus erythrogaster EN
- White-throated wren-babbler Napothera pasquieri EN
- White-tipped Monarch Symposiachrus everetti EN
- White-winged Duck Asarcornis scutulata CR
- White-winged Flufftail Sarothrura ayresi CR
- Whitefin swellshark Cephaloscyllium albipinnum CR
- Whooping crane Grus americana EN
- Wild Bactrian camel Camelus ferus EN
- Wild water buffalo Bubalus arnee EN
- Winged mapleleaf Quadrula fragosa CR
- Winghead shark Eusphyra blochii CR
- Wood turtle Glyptemys insculpta EN
- Worthen's Sparrow Spizella wortheni EN
- Woundfin Plagopterus argentissimus CR
- Wyoming toad Anaxyrus baxteri EW