chickens love pond salad

I started getting overrun by floating pond plants so I started feeding
it to my chickens.Now they beg for it. Its so hot here that I think it
must be very refreshing. My peasants are in with the pond so they help
themselves. The peasants are good birds and dont destroy the pond. If
I let the chickens in it wouldnt last till tomorow. The order of their
favorites: First the frogbit goes. Then the fairy moss. Then the fight
for the hornwort and anarachis grass starts.
I once tilled and planted with ryegrass a spot that was 50 square
ft. When the grass came up I put 1 cochin hen with a peasant chick in
the pin thinking it would give them something to suppliment their
feed. The next day it was completely turned over and there was no sign
of grass or any other form of life except the hen and chick. What I
mean is if you ever think about putting chickens with a pond (even
one) dont.