Help! Something is eating my rocket!

I went out yesterday to gather some salad for my lunch, only to discover that my rocket has been eaten. Every leaf has been nibbled, so only a thin bit is left. Any ideas on what the culprits are and whether I can stop them? My other salad leaves are fine. Thanks.

The dreaded slugs and snails, I expect !

Always go for the main and obvious suspects which are slugs/snails-if not that then you have rabbits,or something else on legs

Scatter a few slug pellets about

Pigeons like rocket on my allotment!

Thanks for that folks. I don't usually have trouble with slugs or snails, so maybe it's birds/rabbits. I will just have to be vigilant I guess.