Developmental/congenital defect, anyone seen similar?

Susan Skylark

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I hatched a few coturnix quail ten days ago, the eggs were cold exposed (so stressed) and a relatively high percentage of birth defects (2/4 live chicks with 2 dead in shell/failure to hatch) is not unexpected. Wry neck, scissorbill, umbilical hernia/unabsorbed yolk sac, and other well known deformities are common enough in such cases, but one of my wonky chicks is quite novel in my experience, just wondering if anyone has seen similar, I’d post a picture but it just looks like a crusted scab in front of (cranial to) the vent. He hatched with a red, swollen lump that wasn’t a hernia or a prolapse, it drained reddish/serous fluid for a couple days and then scabbed over. Growth rate is slow but he’s still alive. As it is a male he’ll go in the freezer anyway (sex linked recessive hatch) but just curious if anyone has seen anything similar?
 

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