The little hen is knitted using a thick aran (worsted) or chunky yarn and the details are all knitted using 4 ply yarns. The scarf is made from an oddment of sock yarn.

ERRATA:
When knitting the body this is how it should read from the place marker row

Next row: P7, PM, P2, PM, P7.
Next row: K1, K2tog, K to last 2 sts, K2tog, K1. (14 sts)
Purl 1 row.
Next row: K2tog, K4, M1, SM, K2, SM, M1, K4, K2tog (14 sts)