I can understand how you feel, as rabbits are causing chaos on my plot, which is a fair size, so I'm having trouble getting fencing up fast enough to protect everything. Pigeons were also stripping every last bit of every brassica I planted. I now dread turning up at the plot to see what damage has been done. The other day, I turned up to find a rabbit had dug out most of my asparagus bed and chewed the tops off 2/3rds of the plants, which left me feeling like hiding out on the plot at dawn with my gun
If you look on ebay, you can find 50m rolls of debris netting for around 30 quid. If you use it over either hoops of plastic water pipe, or cane supports, it should protect against bird attack. It's also far less frustrating to use than cheap mesh netting. If you weight it down well around the edges, it'll also help reduce the attention of rabbits to a degree - possibly enough to keep them off the crops if you're on site regularly enough to fill in the holes where they're trying to burrow under the netting
Courgettes and other similar crops I protect with an upright tube of wire mesh supported with canes. Peas I'm now planting in 1 x 3m blocks with a curtain of cheap nylon mesh netting wrapped around corner posts. Planting densely inside this, with strings for the peas to scramble up strung around within the posts seems to be a workable solution against the pigeons, who stripped every last bit of growth when I planted in other way.
Planting some stuff which doesn't attract the attention of vermin, so you get a crop to boost your own morale is probably a good idea too! Beetroot, chard, leeks, dwarf and runner beans are all doing well on my plot, and seem to get left well alone by the wildlife.
As livinhope says though, wire mesh really is the only decent solution if you've got a rabbit problem.