Is my Leghorn becoming broody?

[Carrie Lynn]

My Bantam Leghorn started laying pretty regularly in early November.
Last week I noticed her sitting on the small plastic egg I placed in her nest box to encourage her to use it.
She has never taken any interest in it, and I've never noticed her paying any attention to the eggs she lays.
She gently moved it and settled over it, she would arrange herself, fluff up and sit like she was going to hatch it.
I didn't think Leghorns became broody often. I lured her with raisins and removed the plastic egg.
Is this unusal for a Banty Leghorn in very cold weather?
Thanks in advance...

 

[Happy Chooks]

Some people are getting broodies, even in cold weather. The key thing to look for to know a hen is broody is to see if they stay on the nest at night. If they are on the nest instead of roosting, they are usually broody.