pumpkin fields

I decided to grow pie pumpkins (they make THE BEST pumpkin pie and yes, they are different than regular pumpkin) this year and discovered that my wee bunnies ate them before they ripened (don't bunnies get tummy aches?). I have three green ones on the patio that I should probably just leave for the bunnies to finish off but I thought I'd see if the sun would ripen them.

 

I wonder how they kept the bunnies out of this field?