1. First, take out a square piece of colored paper and fold it diagonally into a triangle.

2. Next, rotate an apex angle upwards to expose half the width.

3. Then, overlap left and right along the center line, then turn the lower corner obliquely upward to the upper edge line, and turn it upside down to turn the lower corner upward to the upper edge line.

4. Finally, draw the bird's eyes with a black pen, and the simple bird will be folded.