It's possible that it's this year's baby. Growth rates vary and if it eats well, a May baby could certainly reach that size by now. We had a litter of 6 from a 5 year old first time breeder female this year and those babies were much larger than the other Nic litters we've had. Our litter sizes have ranged from 6 to in the high 20's.
The size estimate that you mentioned is on the small side. That size would be true for a male but females often grow to 5 or 5 1/2 feet long on appropriately sized meals every 7-10 days. I'm not sure if that's what you meant by conservative feeding, but many people think that they should feed Nics less in order to keep them small. That isn't necessary. They stay small naturally and should be fed size appropriate meals regularly, just like with a Colombian boa.
I hope this helps.
-----
Amanda Burke
Email
Burke Reptiles Website

[ Show Entire Thread ]