Snow Ucky Kong
From the Super Mario Wiki
The Snow Ucky Kong is an ally in Yoshi's Crafted World. It is a blue Uckykong with large eyebrows of a lighter shade, and a crest on its head. It only appears in Slip-Slide Isle, where it is found fishing. The Yoshi must Ground Pound the jelly-shaped platform where the Smiley Flower is. The Snow Ucky Kong will then wait for the Smiley Flower to come to its rod, and will then give it to the Yoshi.