Thanks for playing, and glad it's landing! The Narrows is where it turns: the heron appears twice in that league's spawn pool and the whole stretch builds to a heronry, so if the birds suddenly feel relentless that's the design rather than bad luck. 14 bends instead of 12, and the difficulty steps up about 55% from the Shallows.

Worth banking a gear upgrade before you push on — the Maw is 16 bends, at night, in the rain, and the boss there summons reinforcements on a timer. Would genuinely like to hear how far you get.