GlicksChicks
Crowing
The smell usually hits you without you smelling it. When I induce vomiting on my chickens with sour crop, I don't put my nose near it, I just breathe like normal and the smell gets to me.I did not smell it.
But, is it possible that he died from sour crop? Do you still have his body, you might be able to feek his crop and see if it feels like a water balloon, even just a small one. Do your chickens have access to grit?