Ground nuts

[Rabbit leg]

I am in an area with lots of walnuts on the ground. I assume from last September/October.
I can easily open them with my fingers which means they a probably not sealed.
I've been opening them for the birds which has made me very popular.

Are they safe to eat? They are easy to open and lying on the ground. If not, can they be made safe?

I have been eating the hazelnuts from the ground. But this has made me unpopular with the nuthatchs.

 

[TeeDee]

I have been eating the hazelnuts from the ground. But this has made me unpopular with the nuthatchs.

They have a powerful Union , be careful..

 

[Rabbit leg]

The nuthatchs have now started on the fat ball and walnuts I put out. So that takes the pressure off a bit.