Go to Central Park near 5th Avenue & 60th Street entrance, and ho fed the bread to the swans & ducks:- This is a real Kiyum of “VeRachamov Al Kol Ma’asov”.
You shall not receive 1 complaint from neither the swan nor duck about how stale [nor freezer fumed] the bread is, and yet they will heartily enjoy it.
Many people would appreciate homemade challah for Shabbos Hagodol as they don’t have a chance to bake any. If you get the word out to friends, family and neighbors I’m sure they’ll be gone pretty soon.
Or call your local “Shabbos package” organization, or perhaps a Bikkur Cholim.
Maybe I’m selfish, but I wouldn’t want my perfectly good, slaved over challos to go to the birds…