"I picked up McKenna Ryan's Hanging in the Hood from Home Tweet Home collection. Some pieces are so intricate and narrower than 1/4", such as bird feet, so it is impossible to turn them under. They must be fused. Live and learn I suppose. "
Don't let a pattern dictate your method. I needle-turn applique a lot and find embroidery stitches look better on these tiny pieces better than trying to turn-under such narrow pieces. I've done several methods, traditional turn-under-as-you-go, templates with starch and iron, and combinations. A wooden toothpick dipped in water is a tool I cannot do without. It tucks those stubborn edges under, smooths out unwanted "points", tucks under frayed threads, really sharpens inside angles, etc. Good luck with your project!