So, this information is all hearsay, courtesy of YaYa:
The birds have now completely ignored my father and his attempts to eliminate their dwelling/nest. In fact, they have incorporated one of PoPo's scary rubber snakes into their nest. They are using it like a twig. Hee-Hee. And, PoPo must use the water hose daily to wash away the bird poop on his porch.
Here's the score:
Good luck PoPo! We are rooting for you!