As well as the safe wild plants in above link (nb - I'd be wary of the hogweed as the UK has the giant version here too which causes bad irritation/problems)
@teddymouse regularly goes foraging & does her own plant drying too sometimes.
If you have any meadow fields locally try going in especially after the grass has been cut&collected by the farmer , I have gathered bagfulls of long grass, that's left in excess lines/lumps/Piles in the field & left it to dry a day or two&it produces a sweet, green, gorgeous hay that my girls love
If you dry it on a plastic sheet or metal tray & turn it after 4 or 5hrs it dries thoroughly & won't go mouldy when you store it afterwards (store in a paper bag, net or old pillow case will allow the air to circulate).
If the Guineas have a garden run, let them eat the grass, this will help keep their teeth down, although maybe not quite as well as hay.
If you could buy a bale of hay off of a farmer it often works out far cheaper, than the smaller shop bought ones (say for a £5 big bale that lasts months, instead of the smaller dearer ones that only last a couple of weeks if you're lucky!
I'd try asking super markets or street markets if you could have some broccoli or cauliflower ends/stalks/outer leaves.
A friend of ours grows carrots & saves me the leafy tops for the girls too
If you have apple, pear, carrot, runner bean peelings try giving them those, sometimes they don't get eaten by us slaves, but they're enjoyed by the Guineas instead of being thrown out.
Good luck, and follow some of the tips on this thread for cheap/free alternatives.
been there myself! Still things are a bit meh, but that's the times unfortunately..
Amazing wee forum for thanks all again
