We have a great luck with Jose, he is so implicated with mothering chickens that he thought that we could check if our chickens were alive if we took a phonendoscope and heard their hearts. And he managed to look for it.
Eureka!!
He got it and we have heard them. So we know that now our chickens are alive, we could hear their hearts, it has been a great experience, our faces changed into a happy face when we could hear the beat.