We lost another pigeon on Thursday. I am not sure what is going on. My son Josiah had gone out to the loft to visit our 3 remaining pigeons and all was well. He held all 3 and talked to them. Fed them and changed out the water. All was well. He came into the house for a few minutes and went back to the loft. The young female pigeon that had paired up with the cock after his mate died about a month ago was found to be breathing very hard. Josiah picked her up and ran her into the house to my husband. She died in his hands. This all happened quickly. She had been fine as far as I know. She had been eating, drinking and seeming well. The water is changed twice a day and the loft kept clean. Our other hen died about a month ago with no apparent illness. Being new to this I am real confused and I wish I knew more about pigeons. Should we treat the 2 remaining pigeons with anything? The other 2 seem just fine,but then again the 2 that have died seemed just fine too. I am concerned and I would deeply appreciate any advise.