Double-Barred Finch Location in Heartopia

The Double-Barred Finch can be found at the Fishing Village Lighthouse in Heartopia. But you’ll need to reach Level 3 in the Bird Watching Hobby before it appears. If your hobby level is lower than 3, the bird won’t show up, even if you keep checking the lighthouse.







![The study demonstrates how applying the Hecke operator [latex]T_{16}[/latex] to the chiral [latex]c=1[/latex] boson’s torus partition function [latex]Z_{\text{boson}}(\tau)[/latex] effectively multiplies its effective central charge by sixteen, manifesting as a sixteen-fold increase in the winding number of divergences-particularly evident at [latex]q \to 1[/latex]-and illustrating a fundamental transformation of modular functions through operator application.](https://arxiv.org/html/2602.12265v1/x2.png)