My female Muscovy is a first time mum and hatched out 15 ducklings over a week ago. Yesterday when I went to feed them one duckling was missing. My children found it hiding well away from its mum and siblings. When we took it back the mother started pecking it and chasing it away. It took refuge next to my son who stopped the mum from attacking it. We brought it inside and tried to reintroduce it several hours later but the duck reacted the same way, honing in on the duckling and acting aggressively towards it and it ran away. We kept it inside over night and my kids have been giving it lots of tlc. I considered placing the duckling back under her during the night but didn’t want to risk her hurting it when she noticed it the next morning. She reacted the same way today when I took it back outside for some supervised foraging. I’ve had numerous Muscovy ducks over the years but have never witnessed this behaviour, any ideas on what’s causing it?