Is it normal for what looks like urates to be on the males back?

Like the title says is it normal for a white chalky substance to be on the males back after pairing?

(1st year breeding excuse the newbie question)

It can happen. They tend to get a Lil dirty when doin the deed ;)

I have one pair that I have to wipe down after each pairing, because they COVER each other in it. It's gross, but normal yes.

Gross, but normal.