@WannaBeHillBilly , exactly, trifolium family are the good guys. And yes, good for bees and other insects as well; in fact we sow crimson clover (trifolium incarnatum) over the winter so it can serve as backup if (... more like when; or, more like again, lately) black locust is hit by late frosts. It also provides nitrogen for the main season crop.
Oxalic acid can also be found in large quantities in rhubarb (the reason we don't eat the leaves) and knotweed (although young shoots are edible because of lower concentration and in fact taste a lot like rhubarb once cooked). Sorrell contains lots of oxalic as well, that's what gives it its specific taste.
In other news - I've cleaned out the straw in the duck house today for the first time. It's a rite of passage I guess

It's a stinky job but not more than a human kid. It's clear how they were all afraid of everything when they first moved in from the unusual concentration of manure in one spot.
Anyway, i took the crappy straw out, moved it to the orchard to be used as mulch around young trees and (tall) berries and replaced with fresh straw. We have about a month to arrange a reliable source of good straw.
The ducks had the opportunity to discover yet another new part of the property today and had a grand time. I don't know what a 4 month Khaki Campbell should look like... But they seem fat

and they honk quite loudly. Maybe we've been swindled and they are in fact (short-necked) geese.
(They get about 3 oz per duck per day of grain and the rest they forage; so I don't think we're overfeeding ... ? )
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