It seems to do them no harm...
In the spring we bought (for pennies) a few polystrene boxes, which had been used as Cool Boxes to transport food stuffs, they were the right depth for growing carrots in.
Missus put the box out on a small shelf next to the greenhouse and lo and behold the girls started pecking away at the corner and eating the stuff
![tongue2 :tongue2:](https://chat.allotment-garden.org/Smileys/green/tongue2.gif)
and kept going back each day for more.
Thought they would have problems, but nothing happened. Still moved the half eaten box away from them though
Wouldn't mind having a look at the programme, please post the link and i'll try and see if i can get it working