Now is the time to practice feed security and sanitation. Track your feed use, anything over a quarter pound of feed per hen per day (ignore the roosters) means you are feeding something else besides your chickens. I know, you think you can't afford to invest in a treadle feeder but in fact you pay that much and more several times a year.
Most areas of the country have some sort of trash fish like carp or gar. If things got too bad those fish could be a huge supplement for a backyard flock or even pets if you pressure cooked the bony fish. Earth worms are easy to raise and much cleaner than a compost bin especially to keep the rodents at bay. And for hundreds of years people raised hogs on acorns, a bit of grinding and leeching would make an edible feed.
Most areas of the country have some sort of trash fish like carp or gar. If things got too bad those fish could be a huge supplement for a backyard flock or even pets if you pressure cooked the bony fish. Earth worms are easy to raise and much cleaner than a compost bin especially to keep the rodents at bay. And for hundreds of years people raised hogs on acorns, a bit of grinding and leeching would make an edible feed.