First timers looking for advice

[DingoDog5]

Hi all! We just got our first flock of chicks! We’re all excited and loving our new adventure but tonight we noticed our Golden Laced Wyandotte (who we guess is about 2weeks old) has something funky happening on her underside. Would love some advice and guidance

 

[oldhenlikesdogs]

Photo is a bit blurry. Is it wet or thin in the feathers? What type of bedding are you using. Is it being cleaned if it gets wet? Pictures of your brooder may help.