:eek: Good lord.
I can’t believe you’re even considering letting them stay. I’m not a particular pigeon-hater, but we have endemic pigeons in our neighborhood, and it’s an ongoing battle for everyone here to deal with them.
Pigeons aren’t remotely like mourning doves, in terms of behavior OR mess.
If you allow them to stay, you will basically have opened up a non-stop pigeon production facility. You did know that pigeons will breed year-round, if there’s enough food, and the winter isn’t too harsh? Pigeons, unlike other birds like robins or house finches or mourning doves, won’t simply raise a brood and then scram: they set up permanent residence and raise brood after brood. This is why people historically kept them in dovecotes: to have a constant supply of meat, because they’re jes’ breedin’ fools. And there’s a non-stop supply of squab if you keep feeding the parent birds.
Now, you’re probably not planning on climbing up there and retrieving the resultant young for BBQ, so they’re going to grow up, and when they do, they’re going to come back to the Home Place, and they’re going to bring their mates. And they’re going to set up their own second-generation pigeon-production facility, right next to where Mom and Pop’s nest was. This, again, is why dovecotes work so well; they tap into pigeons’ hardwiring to nest right next to Mom and Pop.
And next thing you know, there will be pigeon shit all over your porch like nobody’s business. And the only way to get rid of them after that will be to kill them. Seriously. They don’t understand “go away”. Tearing down the nests, after they’ve successfully raised young in them, won’t give them a hint. They’ll be permanent residents.
You don’t want that. Trust me.
Go out there right this minute, [channeling Your Mom here
] and disappear that egg, and devote yourself for the rest of your occupancy of the house to refusing nesting permission for any and all pigeons on your porch.