I have 2 BPs. Both right at a year old. Bob is around 850g and Shiva is around 1000g. 2 months ago they both refused for the first time ever. Weekly feedings till then. Now they only eat once a month despite being offered weekly. Neither of them are loosing weight and both still show normal behavior for them. No change in husbandry. Just change in their desire to feed. Winter is on the way and they know I am sure.