This morning when I collected the eggs from my coop, I noticed something wrong with one of Bertie’s eggs – the shell was soft and malleable.
She isn’t deficient in calcium (she has shell grit frequently), so I thought I’d do some investigating (aka a google search), as this is the first time I’ve found an unusual egg.
Backyard chickens have a great link that mentions a whole range of reasons for problems relating to egg quality.
She has recently finished moulting, so it may be due to that. I will certainly keep an eye on her if anymore appear.