It maybe mating behavior but one thing about the wing not being 100% is that she'll probably not fly off again. Such cute pics of the 2. I think your doing the right thing by keep duck up till you get home. Goose is so big even accidently she could injure duck. That last pic looks like goose is giving duck a kiss on the head.
Strapping the wing didn't help much because once the duck got outside she was diving through the tortoises water bowls and flapping and fluffing much better. Don't know if that wing will ever set now! As soon as the duck saw Goose she RAN to her chattering all the way. The goose was very snooty though and wouldn't let duck near her pond until she had walked (literally) over her!!. She stood there, one foot on the ducks back!!I nearly had a fit and tried to chase Goose, but she was quite protective of the duckNot nasty or anything, but she positioned herself between me and the duck and when I pushed her away she just came back! Sounds more and more like mating behaviour doesn't it.... Goose was fine after she had asserted her authority. I dare not leave them alone together while I'm at work, but I can't leave the duck in the camp with the goslings because the one older gosling attacks and bites her! (Bare in mind that this EG gosling is only about 3 weeks old) If I leave the crate outside unsupervised the duck may hurt herself trying to get to the goose, so she'll be crate bound until I get home every day