Parrots spawn rarely in Jungle

Created new world in 17w13b, survival, normal difficulty, seed "17w13a" which spawns in a large jungle. Spent at least 8 hours wandering the jungle holding cookies and never encountered a single parrot. I also tried making a clearing so there'd be more solid blocks eligible for mob spawning and waited a suitable distance away for several day/night cycles.

Maybe the infinite-parrot bug got fixed a bit TOO well?