I don't know why, but the term when you say..

the male may stray and mate with another female..

Got me in a set of giggles😂😂

As they mate in colonies, I can just imagine a scenario where blackbird female A, looking for her mate and finding him with coming out of the nest or even better in the act of straying with female B😂😂
Female A, confronts the male for his behavior and he replies saying...

I think I may have strayed away from my good manners a bit😂😂

Lovely contrast from the ever faithful bluejay😗