One of my 2 yr old birds has been having trouble walking. At first when I looked her over I didn't see anything so I thought she might have sprang a leg. For the last couple of days she has been laying in their run. I have a bowl of feed and a bowl of water on the coop floor for her to eat and drink out of. She is eating and drinking ok. This morning I went out and looked again and this time I noticed red streaking on one of her leg and toes. Any ideas of what it might be?