were i am working we have a small pond and every year a duck hatchs out her ducklings on it then takes them through the town to the river usually on day 2-3. this year she has left 2 behind . they have been on our tiny ornamental pond for 2 days now and mummy duck has not come back for them...it is now friday and no one will be baout till monday - i have a broody hen at home ( sitting on nothing) can i take the ducklings home and put them under her in the hope she will adopt them ???