I'm starting to think she has been underfed....

Here is the dates that I got from the feeding card. (for the most part the size of prey is not mentioned)

Born 04-30-2011

Feed Dates:
06/14/11
06/21/11
06/28/11
07/05/11
07/13/11
07/30/11
08/06/11
09/04/11
09/16/11
10/02/11
10/16/11
10/30/11
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03/25/12
04/22/12
06/03/12
06/16/12
07/01/12
08/06/12
10/5/12 - rat pup
12/22/12 - rat pup
----------
01/01/13 - rat pup

I was able to weigh her today and she came in at 420 grams. Please let me know your thoughts.

Thank you!