What is the Witch wearing on her shoulder?

[Peepiceek]

In the scene with the death of Aslan, the Witch has something sticking up behind her head from her right shoulder. I've always wondered what this is and why they put it there. Does anyone know?

 

[Benisse]

Was it a raven or raven wing?

 

[Migore]

In the scene with the death of Aslan, the Witch has something sticking up behind her head from her right shoulder. I've always wondered what this is and why they put it there. Does anyone know?

Didn't notice this before, I will watch it again and will try to figure it out