Hello, I am writing to ask if anyone else has ever had this happen to their beloved bird. I adopted two brother cockatiels from a bird rescue approximately 3 1/2 years ago. At that time we were told that they were about 2-3 years old. Tom and Jerry did fine up until last Friday. Thursday evening Jerry was fine: eating, drinking, etc., as normal. Friday morning I noticed that he had made this unusual coughing sound for about 2 minutes and then stopped and seemed fine. Later that afternoon he seemed a little more lethargic but I thought it was just that we were having a very warm day here. I thought maybe Jerry needed some cool water so I put a pan of water in the bottom of the cage but he didn't seem interested so I thought I would put him on my finger and help him into the shallow pan of water. He bit me so hard and didn't want to turn lose, drawing blood and much pain but I managed until he let loose. He didn't want to be in the water and flapped over to a corner of the cage where his little head went sideways, he closed his eyes and died. I have no clue what happened to him as he didn't act sickly at all until the funny coughing spell he had Friday morning. Now Tom is mourning, hasn't made any sounds at all, which is totally unusual for him. He is eating and drinking but I can tell he's missing his brother as they have been together since they were babies. Is it better to let him adjust to being alone for now or to get another cockatiel for him? Thank you for any input.