Have seen this.....I assume shaking head is discomfort or just weird feeling of swelling.
Those a bit more swollen than I've had here, but it should go down within a day or two.
Before and after pics here:
https://www.backyardchickens.com/articles/frostbite-in-sw-michigan.74597/
Those a bit more swollen than I've had here, but it should go down within a day or two.
Before and after pics here:
https://www.backyardchickens.com/articles/frostbite-in-sw-michigan.74597/