new chicken limping with green foot

[Birdgirl]

My husband brought home a hen tonight.she's limping and it looks green. What can I do for her? Is it gangrene? I don't want to infect my others with something either. please help. There's no smell. And she was able to jump up to the roost.

 

[Eggcessive]

Don't worry too much. She has a bruise from an injury. Pen her up for a few days with food and water, and see how she does.