What breed?

[Buknee]

Mama is NZ and I thought the buck was too. I bought my doe from a gal that keeps hers in a colony so there is no sure way of knowing. Beauty had kits 10 days after arriving to my farm. Looking closer at this little guy today, I began to question the buck's breed. He is mostly gray with a white belly and a chestnut coloring on the back of his neck. But then there's his nose! He is 5 weeks old.
Please give me your thoughts on what breed he is. Thank you.

 

[Jackrabbit]

He/She dosent seem like a Purebred NZ. So probably just a crossbred.