Why does my duckling have weird feathers?

[Herb81003]

 

[Fuchsia]

It looks like angel wing to me.

This thread might be able to help you-
https://www.backyardchickens.com/threads/angel-wing-treatment.1252014/

 

[Isadora]

Agreement that that appears to be angel wing. The wing rips are pointing the wrong direction.

 

[ruthhope]

Please follow the directions in the link that @fuschia provided. Its not difficult to bind the wings and it is only for a short time. But the timing is critical: that is now, dont delay!