Could this be sour crop?

[charmedbaker]

My old RIR has been very droopy the past few days. Not eating or drinking. I picked her up and she spit up a yellowish goo. Her comb is also gray, white and not perky. Any ideas?

 

[slaw123456]

it isnt sour crop because it has a defenent smell if it is.3 of our chickens were doing a similar thing but they didnt spit stuff out

 

[charmedbaker]

it isnt sour crop because it has a defenent smell if it is.3 of our chickens were doing a similar thing but they didnt spit stuff out 

thanks. The old girl died this morning. She was drinking water at 8 am but was dead at 11 am. The rest of the girls are not sick so I hope it was old age that got her. She was 6