Hi, I'm really worried about my hen. They were all fine this morning but when I checked on them just before one of my hens were acting really strange. She was really skinny and her wings were twitching. I think I also saw her vomiting. She has some marks under her beak, could this mean she was vomiting before as well? She is in the aviary with 6 other birds. They all seem healthy. I'm not sure if I should remove her from the aviary because I think she might get even more stressed as she is not tame and it's quite hard to catch her. I saw her eating after she vomited and I think now she is begging for food from her mate? More information is that our friends have come to stay and they brought their dog, could their dog have scared her? Sorry for all of that but I just hope she isn't sick. Thanks.
Also, she keeps closing her eyes. I'm not sure if that will help.