Pour 1 (11 ounce) package butterscotch morsels into a microwave-safe bowl and microwave at 30-second intervals, stirring in between, until fully melted and smooth.
Combine melted butterscotch and 1 (5 ounce) package chow mein noodles in a large mixing bowl and stir gently until noodles are fully coated in butterscotch.
To Make Butterscotch Haystacks:
Drop 1/2-cup portions of butterscotch candy mixture onto a parchment paper-lined sheet pan.
Allow to sit at room temperature for around 1 hour, or until butterscotch candy is fully hardened.
To Make Butterscotch Bird Nest Candy:
Line a muffin pan with cupcake liners, then add about 1/2 cup of butterscotch candy mixture to each cup.
Use two forks to form the butterscotch candy mixture in each cup into a nest-like shape.
Add 3 36 Cadbury Mini Eggs to the center of each butterscotch candy nest.
Allow the butterscotch candy nests to sit at room temperature for around 1 hour, or until fully hardened, before removing from muffin pan and/or cupcake liners.