I have a veterinary appointment booked for Jersey my White Bellied Caique tomorrow morning at 10:00am. Something may not be right but I’m really hoping that there isn’t anything serious going on. I’ll give you all of the information I have so that maybe you can give me some input. Jersey's History Jersey was hatched in March 2007 so he is almost 3 years old. He’s had “wellness testing” and “disease testing” done by his previous guardians, which came back “normal” and negative. I adopted Jersey at the beginning of November 2009. I didn’t have a “new bird” exam performed because he is young and had just recently had several test performed. I normally do, but I arranged to adopt Jersey right before one of my Lovebirds Jalen was hospitalized for a week and then passed away (due to nothing contagious). I am in a really bad financial situation because of that which is why I decided to wait on the tests. Jersey has stress bars on his feathers and a few black patches on his feathers. The previous guardians fed him a diet of mainly a mix of different pellets and some fresh fruits and vegetables. I’ve been feeding him an all organic and well balanced diet of sprouted or cooked grains and legumes, a wide variety of vegetables, a wide variety of fruits, some seeds and nuts, and some Harrison’s pellets. If he has a deficiency, this diet should be treating it. There are only two signs that I’ve noticed that makes me thing that there could be something wrong. 1. Weight loss. Jersey’s Recent Weights: December 13, 2009: 160 grams. January 2, 2010: 150 grams (I think, I could have gotten this one wrong). January 7, 2009: 140 grams. That means that Jersey has lost 6.25% of his body weight in the past five days and a total of 12.5% of his body weight since December 13. 2. Fluffed feathers. Jersey’s head and some feathers on his chest and shoulders were fluffed today. I saw him shivering at one point. Additional Information There are no other signs of illness that I’ve noticed. He’s active, eating, defecating, etc. That is, unless I’m just not noticing anything else. None of my other birds are showing any signs of illness. I've done disease testing on a couple of my birds for the three major diseases at the beginning of November as well and all came back negative. I've maintained a "closed aviary" since then. No birds have gone to parrot club meetings or have been near other birds, and if I am I strip down right at the front door, disinfect my clothes in the laundry, and just in the shower. I doubt there's anything contagious going on, but it's of course possible. I'm trying to think of if there's anything else I should mention..... I gave him some seeds and nuts to give him some extra energy. Should I quarantine him immediately or can I wait until after the vet visit tomorrow morning. IF he were to have something contagious the other birds would already be exposed and I really fear that separating him tonight would make him stressed out. What do you think?