We found a huge strange dog in our chicken yard! 10 of our 14 chickens were dead! My kids are traumatized they were our babies we loved them so much! We found an injured hen, Jellybean, that I want to save so badly. I don't know anything about injuries like this, should I clean it or put something on it? Is it too deep do you think I should just put her down? We made a makeshift hospital for her with food and water. What do you all think?