My chick Harry Potter ( that's his name). Has not been able to poop for the last 2 or more days.he is one week old. His abdomen is hanging down and is dirty. I washed of all the poop around his vent but he still doesn't seem to be able to poo. He isn't as active as the other chicks and stands in a sort of squatting position. I tried soaking him in warm water to get him to do his duty, but he still won't. He is also wobbly and is peeping a lot more than usual. He sounds like he is whimpering or quietly crying. Could his anus be not fully developed? Any help is appreciated. Thanks!