- Order: Saurischia
- Suborder: Bird Feet
- Infraorder: Bird Wyvern
- Family: Hypnoc
Silver Hypnocatrice are only seen in the Great Forest Peak during winter.
Silver Hypnocatrice feeds on carrion, fish, and small animals. However, the Bird Wyverns come into contact with Espinas Rare Species, Rathian, Kuarusepusu, and Doragyurosu which can easily prove fatal to the Hypnocatrice.
Much like its rust-coloured cousin, Silver Hypnocatrice have special organs that produce a tranquilizing material which, when mixed with saliva, can be shot in large amounts to tranquilize small prey and enemies alike. Unlike their common relatives, Silver Hypnocatrice sport whitish-blue feathers. Silver Hypnocatrice have much stronger legs allowing for the strength to stomp and cause quakes even.
Silver Hypnocatrice are exceptionally aggressive and very intelligent. Causing quakes with its very powerful legs in dancing displays and kicking predators and prey to death with a fury of enraged stomps and clawing, it is so aggressive that it will slide kick an enemy until it falls over its self.