Level 4 was challenging. I only have three birds so it took many tries. I had a much easier time with levels 5 and 6. I think I finally passed it when I randomly received a mighty eagle spell. I don’t think I can pass level 7 with 3 birds, but I hope to get another one or two before the event ends.
Can you post a picture of the first room? I don’t honestly remember how I birdied it.