|"Thrushwing had rejoined the battle and, in spite of an injured leg, fought like TigerClan to avenge the death of her brother."|
|— Narrator about Thrushwing in Secrets of the Clans, page 33|
Thrushwing is a she-cat and a warrior of WindClan. In Secrets of the Clans, she is sitting vigil with her brother, Stoneclaw, who became a warrior with her. Stoneclaw notices something beyond the bushes, and as he wonders whether he should call for help, a ShadowClan cat jumps out and slashes his throat. She watches in horror as his life bleeds out of him. She shrieks a warning cry, but the air is knocked out of her lungs as a large cat pounces on her, causing her voice to temporarily die under the weight. She feels the large cat's teeth stab her neck as ShadowClan rushes into WindClan camp.
Despite having an injured leg, Thrushwing fights like TigerClan to avenge the death of her brother. WindClan fights as hard as they can against the invaders, but Tallstar orders them to abandon camp in fear they'd be destroyed if they stayed. Thrushwing is seen leaving camp after Morningflower, leaning on Onewhisker for support.