unsure diseases?

I have a less than 1-year-old rooster who has black spots all over his comb and the back of his head has been pecked at by one of our other roosters. His comb was sort of purple only at the tip about a week ago and we weren't sure what was wrong, recently it turned black and is more widespread...

I’m really concerned and I don’t quite know what to do. Please any sort of help will be appreciated. My hen (spotted sussex) recently hasn’t been active. Tonight I found her laying in the middle of the yard, while all the other hens were settled in the coop for “bed time” and it caused me to be...