I have 8 Muscovy ducklings. They were hatched by their mom and are being raised by her. One of them has been breathing funny. It will open its mouth the others are not doing this. They are about 3-4 weeks old. Does anyone know what might be causing this? I will try to attach a video.
https://share.icloud.com/photos/04bAIFwoLRCM18s42R2y23eqw
https://share.icloud.com/photos/04bAIFwoLRCM18s42R2y23eqw