Who Dunnit?

There is something fowl afoot.  Eggs are being eaten.  I think the culprit might be the hen in the above photos.  She is a hen who isn't like the others.  She wanders alone.  She flies.  She follows me around the yard and has hen pecked our dog.  She is smart enough to realize that there is some yummy stuff inside that brown oblong shell.  Tonight, she will sleep in a separate pen and I will see if she is the one.  If not, she goes back in the hen-house and I will try another, then another.  I will get to the bottom of this.  I just hope it is only one and not a gang of hens gone bad.