Hey guys. Had a hatch the other day. 10 ducklings. 5 were pure bred mallards, 5 pekin x magpie crosses. The magpies hatched great. Strong, lively, having duck like tendencies. The mallards were all SEVERELY undersized or sickly. 2 didnt make it out of their shells. Ive got one mallard left. Im not sure if I should isolate it and try to raise the poor thing on its own, or just put it out of its misery. The duckling twitches its head alot and struggles to get around. I can tell its not in the greatest health. Not to mention its about half the size of the other ducks... any help?