first cut out a piece of brown fabric in the body shape.
Then make each loop of ribbon and hot glue them to the back of the turkey body piece.
Then sew on the eyes.
Run the beak piece over a flame so it doesn't fray like on my niece's shirt and then sew it on.
Then pin the body with ribbon glued onto the shirt and sew around the turkey bottom.
Notes
If you are not a sewer you could use fabric glue for all the steps that I said to sew or use a piece of iron on a piece ultrahold heat bond to the back of the turkey to stick it to the shirt.