Lawn Time - Are Leaves Safe?

[Pebbles]

Ok, maybe I'm a being a bit paranoid, but I don't feed my piggies anything without checking and double checking first that it's safe.
They are out on the lawn now most days, but with the windy days we've been haivng recently there's a fair bit of debris around. It's mostly leaves from my plum tree - I read somewhere that plum tree branches contain cyanide, so is the odd plum tree leaf safe if they eat it?
I also read somewhere that plums are poisonous to them, but I'm fairly sure that's wrong as mine love plums (obviously fed only occasionally!)
I'm wondering whether I need to continue crawling around hand checking every bit of lawn I put them on - typical piggies, they will go right for the one leaf I missed!
Does anyone know?

 

[rome_italy]

No, you are not paranoid and I also would check and check again...
I don't think that 2-3 leaves are poisonous, but cyanide is toxic and I would prefer avoiding also the very little amount they can find in your lawn. I think it is safer if you go on crawling around... some sport activity is good!
what's about using a rake?