
Oh Alice!
I shouldn't laugh... but I can just picture your face!!

Not just sheep, but Hedgehogs, Deer and research from Scotland that pheasant & Grouse are becoming prime hosts.
Get yourself a tick remover (special hook gadgets, you'll find them in PAH) because you cant go wrong with these.
The problem with Ticks is that they have wee hooks that lock into the host and much as a tick might want to release quick (if its being pulled or other methods..) it simply cant and leaves its head in the host which means the risk of disease transmission continuing for a few hours.
So the old wives tales of 'suffocating' ticks to remove them are not very wise, smothering with vaseline and suchlike prolongs risk of transmission (especially as when under threat ticks tend to regurgitate into the host).... quickest way is to pull them out.
Using tweezers should only really be done if your experienced (and sharp pointed tweezers, as the problem with 'pulling' out is that its easy for head and body to become detatched) :(
General rule is... sharp pointed tweezer
pull up and out.... Using a tick hook device you
twist (as per directions)
Prevention being better than cure in my book, I use garlic but am not adverse to chemical warfare for these little bloodsuckers (they can swell to 200 times their own body size!) and so I also use avantix (as, as opposed to Frontline, it is also a repellent)
HTH :)