So my 5 hens are not quite a year and a half old. They eat an all flock feed with free access to oyster shell and crushed egg shells. And yet, their shells are consistently thinner than even a grocery store egg
what gives?
Are there other health problems that might cause thin shells? I plan on worming them this week because I haven't before, and because I feel like egg production had slowed. It's been really hot lately, so I know that's at least part of it, but I just want to be sure it's not something my inexperience is causing me to miss. They seem to be eating and drinking fine, so I'm stumped...
Thanks!

Are there other health problems that might cause thin shells? I plan on worming them this week because I haven't before, and because I feel like egg production had slowed. It's been really hot lately, so I know that's at least part of it, but I just want to be sure it's not something my inexperience is causing me to miss. They seem to be eating and drinking fine, so I'm stumped...
Thanks!