Black spots on comb

[Katemarsh]

Hi! This is my first time raising chickens. And a few of them are showing black spots on their comb and wattle. Is this something to be concerned about? All are acting normal.

 

[theoldchick]

https://www.backyardchickens.com/articles/black-spots-on-a-chicken-comb.78136/

 

[Eggcessive]

Looks like injuries from pecking or running into wire fencing while being chased. Is she the only one that has these marks? Spending time in the flock observing behavior toward her may give some clues.