Have a white leghorn about 3 yrs old. First noticed she was losing weight maybe 6 wks ago. Didn't worry too much - she has always been skinniest in group.Then her comb and wattle began to get pale which it still is and seemed to shrink. She mostly stands around, sometimes puffed up, sometimes not. She does eat and drink. She will go out to free-range with other chickens but seems to get tired and just stands there. She hasn't laid an egg in awhile, but think that's the weather. Yesterday, the goose had her down pecking on her. When I ran out to pick her up, yellow liquid came out of her mouth. Today I brought her in and put her by herself in a crate with food and water. The yellow liquid still comes out when she is turned upside down or on her side. Any ideas? Can I do anything for her or is she too far gone? Thanks!