Lately, I've spend my early mornings with my camera set up on a tripod near our weeping cherry trees, watching our purple martins. When they're not busy building their nests in one of the four apartment buildings we provide for them, they enjoy perching in the cherry trees.
This morning, a young male martin attempted to mate with a young female, with the result shown here. I don't know what the flying bystander was trying to do, but this scene is not nearly as ominous as it seems. The action ended as quickly as it began, and nobody was harmed.
Interesting capture Norm. Bystanders often seem very interested in copulations and will sometimes physically interfere with the pair. There are many possible reasons for this and it is not possible to generalise.