We're fortunate that the pests largely leave us alone. We have problems with snails and slugs, the gooseberries, if we don't watch them, get stripped by sawfly larvae, and something is currently eating our new crop of radishes. The cages visible in this photo aren't to keep the birds off. In general, they're so well fed that they haven't room for vegetables - the one exception being that the blackbirds do eat some of the raspberry and strawberry crops. No, the cages are to keep our two cats off newly-sown seeds and seedlings.
Our greatest problem is the weather. The long, wet winter of 2014/15 put everything back by months, so we're still eating the leeks and broccoli that we should have been enjoying in January and February; and this year's new crops are coming on dreadfully slowly, little wonder when yesterday's maximum temperature was 11C.