Last spring I got 7 pullets, 2 cockerels and a roo of Welsummers. I lost one of the cockerels on a cold night and he just wasn't ready for that, I guess. But then as I started letting them roam around when the weather got nicer, I had two pullets develop sour crop. I finally had to do surgery on one that eventually became impacted, but ended up losing both by mid-summer. Now, I have another Wellie hen who has it. What gives? Is this something common in Welsummers? I can't believe I have another one that has this problem. They free range and it seems that grass is the culprit. Anybody see this often in Welsummers?