I have 3 Jap Coturnix which are 3 weeks old. One of them recently had a problem with its foot/toe because it had stood in droppings which had dried and constricted its toe (my fault for not cleaning them out more often, will be sure to do it alot more often in future). Managed to get the droppings off its toe but the toe is still black after a day and may be showing signs of rot (its going a bit white around where the nail connects to it) but there seems to be some colour under the skin and some red at the tip of its nail. I'm unsure what to do next, take it to the vet? Amputate the toe myself? Will it fall off on its own if it is dead? Any help would be appreciated.