Sick Gosling??

[GRacer3648]

I had 4 goslings hatch on 6/24/2020 I was away while they were hatching for a few days and they stayed with their parents in an enclosed area with access to water and food. When I got back home, one of the goslings had died from unknown causes. We moved the other 3 inside to a brooder with chicks and turkey poults. I noticed today that one of my goslings was having trouble walking and holding its head up. At times it does hold it's neck up and will walk around with the others. It also preens its feathers occasionally. Its breathing seems abnormal but, I don't know what could be causing it. It also doesn't blink or make any noise. What could be causing this?

 

[Isaac 0]

How is your gosling doing?

 

[The Dim Side]

My newest gosling (4 weeks old) we just got yesterday, and he came with a stuffy nose, so I could hear him breathing. Tonight, I noticed his nose is runny and is breathing heavily. I put some VetRx on his chest and under his wings and put a few drops in the water. Is there anything else I can do? I have another gosling that's almost 6 weeks in the same brooder. Do I need to separate them?