My 2 hand raised muscovys won't stop bullying the new muscovy!

[Minjojojo]

I have 2 one year old muscovy ducks (females) that were raised indoors since hatch and spoiled rotten. They jump into my lap for cuddles & peck at me until I pick them up. They are very sweet to people.

Recently I acquired another muscovy from a farm that seems to be 2+ years old, and my two ducks won't leave her alone! They keep biting her neck, stepping on her back, chasing her, pulling on her feathers, and biting her face. Since then I have separated them. I feel so bad that she's still so terrified. She hasn't eaten, and she sits in my yard and refuses to go into the separate shelter I provided her. It's about 20 degrees Fahrenheit and I'm afraid she will freeze to death!

If you know anything that could help integrate them, and make the new one less afraid of me so that she's not running away from me every time I get close it would be greatly appreciated.

The two white ones are kitty and puppy, and the green one is Minky the new duck.

 

[chickens really]

A close look no touch pen for a couple of weeks. It could be the colour of the other Duck? They need to be close but without being able to reach the other Duck. The new one is stressed so will need time to feel secure.