Como Varys não controla os Passarinhos em Westeros ou pelo menos mais Porto Real, quando ele fugiu para Essos, Qyburn assumiu o controle deles.
LITTLE BIRD: Will Lord Varys ever come back?
QYBURN: I don’t think so. Do you miss him?
LITTLE BIRD: He was nice.
ARTHUR: He called us his little birds. He gave us sweets.
QYBURN: It’s funny you should mention that. Guess what I happened to find today. Candied plums from Dorne.
QYBURN: Now remember, if any of your friends like sweets or need help, they can always come to me. All I need in return are whispers.
[...]
CERSEI: Varys's little birds?
QYBURN: Your little birds now, your Grace.
Game of Thrones, Season 6 Episode 3, "Oathbreaker"
Além disso, quem diria que ele não sabia sobre os escorpiões em Porto Real? De fato, as evidências afirmam que ele provavelmente sabia, considerando que eles colocaram Drogon mais longe do que as forças principais quando foram exigir a libertação de Missandei.