Hi! Today I noticed one of my hens was ill so I sequestered her. Now she is dead! My whole flock (8) seemed fine last night. At the very longest, her last egg was 2 days ago. A few hours ago, she emitted some yellow, watery poo (blackhead disease?). What on earth could kill a bird that fast with no apparant symptoms until today? Baffled! I wonder if my eggs are okay to eat.