Blue Azur’s face/comb turning black

[Onodacops]

Over the last several days, I have noticed that first one of the hen’s face looked very dirty and was black in color. It appears that it has progressed a little bit now is affecting part of her comb. I have three blue Azur and two seem to have this condition. The other is molting and she does not. I also have four golden comments and they are doing fine given the heat over the last week and a half here in center Virginia. All chickens, including the blue Azure have fantastic appetites and I’ve been drinking plenty of water. I have had the blue Azur’s for approximately , 15 months now without any issues at all. Thanks.

 

[Wyorp Rock]

Looks like dirt to me. What have they been eating? Any watermelon?

Wipe or wash off with a wet cloth.

 

[Onodacops]

Looks like dirt to me. What have they been eating? Any watermelon?

Wipe or wash off with a wet cloth.

Lots of watermelon in the last several days given the heat here. Good call, I’ll try to clean them up tomorrow

 

[Wyorp Rock]

Lots of watermelon in the last several days given the heat here. Good call, I’ll try to clean them up tomorrow

Now...HOW would I have known about the watermelon