Gruthic Winged Beasts were large non-sentient creatures having a pair of wings, two heads perched atop long flexible necks, a long tail, scaly gray-green skin and four limbs ending in sharp claws. Their heads featured two white eyes without pupils, a pair of slit nostrils, a nasal horn, a large mouth containing sharp fangs and a pink tongue, and an elongated chin with horn-like growths. When agitated, Winged Beasts emitted shrill, frantic cries.