martin behavior

[nestling]

I have seen groups of my martins attacking one other usually a lone adult male
Any where from 5 to 15 other males chasing him where ever he goes.At times
pinning him to the ground and piling on top.This happens a few times everyday
but don't know why.I don't believe it's the same male each time.Anyone know what
this behavior is about?Thanks for any info or ideas provided.Nestling

[daveh]

What I see around here is a half dozen males gang rapping a female on the ground. The other day a female was being raped by 6-8 males and all of a sudden a cooper flew in . The males got away but the female did not. It happened really fast.

Dave