I think that happens to a lot of poultry owners when they first get their birds is the predators. I have had my share and lessons learned the hard way. Some people can go for years with no problems and others birds are discovered quite quickly. Good luck with your flock and have fun... http://www.poultrydvm.com/featured-infographic/tips-for-protecting-poultry-from-predators
Hello and welcome to BYC, You found an Amazing Poultry Community to be a part of with many great knowledgeable members, who are more then willing to jump in and help you along your journey with any questions you may have.