What do misshapen eggs mean?

[The Chickens' Maid]

We have had a few misshapen eggs from our chickens in the past month or so. I think it's different chickens, and they all lay regular eggs most of the time. They have calcium; I'm also about to vaccinate the whole flock for a respiratory thing ( its more a preventative for most of the flock). They are all acting fine (even the ones that really have to be vaccinated). Does anyone have any ideas? Thanks!

 

[Imp]

The Chickens' Maid :

We have had a few misshapen eggs from our chickens in the past month or so. I think it's different chickens, and they all lay regular eggs most of the time. They have calcium; I'm also about to vaccinate the whole flock for a respiratory thing ( its more a preventative for most of the flock). They are all acting fine (even the ones that really have to be vaccinated). Does anyone have any ideas? Thanks!

Could be nothing, just new layers. Here's a link with some info.

http://www.thepoultrysite.com/publications/1/egg-quality-handbook/18/misshapen-eggs

Imp​