Rare. The post doesn’t say it never happens, just that it is extremely rare. A delayed lay isn’t egg bound. Bound is when it cannot be successfully laid by the hen and outside intervention is required.
I’d like to pass on a wonderful blog post on how to assess your chickens’ health checklist, and an excerpt about the number one cause of death of backyard chickens..
Excerpt:
How To Treat An Egg Bound Chicken
Your chicken is almost certainly not egg-bound- true egg binding is rare
When a...