Weeg
Enabler
Certain respiratory infections make the sinus swell, such as Mycoplasma.My infected duckling is in the same brooder but in a box placed in the brooder, if that makes sense. I sanitized myself between holding them but the group was all together for at least a few days when the one duckling was infected so they were exposed. I watched closely and none showed symptoms until this ducklings face became swollen. I just added antibiotics to her water as well just in case. But I don’t think this is a respiratory infection, it looks like a swollen sinus.