Sorry for the poor picture quality, I believe they were taken with a cheap webcam. I'll try to get better ones later.
My friend has three boas, which she was told were all male, and who had at some point last year been housed together (they're now separated).
In February, the largest snake gave birth to quite a few babies.

This was before I had met her, and she was living in another state anyway.
Sooo...she describes some of the babies as "wierd...no red on them". It sounds like she's describing anerythristic, but I can't tell from her description. She says that some were silver and grey, with no red on their tails, very unlike the parents or littermates.

One of these "wierd" babies given to a friend of hers, who has provided the pictures which I'm including in this post.

What do you think? She's considering doing a planned breeding with this pair again, and I'm trying to help her do it properly this time. Anybody got links to a good site with proper breeding techniques?