Follow the Cuccos
In Order to start this sidequest, you need to complete "Codgers' Quarrel". If you speak to Trissa afterward, she will tell you that her supply of eggs has run out, and that she needs new ones, however the cuccos have moved their nest to a new location and she doesn't know where that is. Because the demand for eggs is so high, she'd like 10 of them.
The cuccos leave the village at around 5 am, and you can follow them if you'd like. alternatively, you can just head to the cucco hideaway, which is located at 1877, -1156, 0200. Seen from the shop, it is basically in a straight line behind the device dispenser, however located on the other side of the mountain. The entrance is a little hole in the wall which you have to crouch through. Inside, there are 6 nests with 2 eggs each, totalling 12 eggs.
After you've grabbed the eggs, you can return to the general store and give 10 of them to Trissa. She will give you 50 Rupees in return.
