Where had Katniss seen the red haired Avox before in hunger games?

Katniss actually doesn't see the red-haired Avox before the events of Catching Fire. This is a common misconception, as many people assume she saw her at the Games because of how impactful the moment is.

However, the Avox is only introduced in Catching Fire, during Katniss and Peeta's tour of the Capitol. She is specifically mentioned as being in the "singing birds" scene.

It's worth noting that the Avox's silence and inability to speak emphasizes the cruelty of the Capitol and serves as a powerful symbol of Katniss's own struggle for freedom.