Will Relocating a Pigeon Work?
You're a decent human being. You don't like hurting or killing animals, even if they've caused quite a lot of trouble over the last days. That's why, when it came to getting rid of the pigeon in your attic, you chose to trap it in a cage, rather than look for ways to kill it. And yes, it took time, money and patience, but you successfully caught it, and are willing to set it free, letting bygones be bygones. Of course, you don't want it to return to your house once its free, so you think about relocating it, just set it free somewhere far from your house where you feel it'd have a good chance of survival. But will it even work?
Probably not.
While relocating would work with almost any other unwelcome animal you catch in your house (and is even the most preferred method of resolving pest problems for many wildlife experts), pigeons are great exceptions to this rule. Time and time again people have tried relocation with pigeons, transporting them in different conditions over large distances, only to find the pigeons beating them to their house when they return from releasing them.
In short, it has almost always never worked, and there are two main reasons why.
1 - Sharp homing instincts
Ever heard of pigeons being used as messengers in the olden times? Well, you heard right. No matter where they would be carried off to, they'd still be able to return to their original owner's home, who would find a message attached on the leg from the person who carried the pigeon off. While this was extremely useful at the time, in your case these sharp homing instincts are a huge disadvantage; there is nowhere you can dump off the pigeons without them being able to find their way home again.
2 - They can fly large distances easily
While I find it tedious to point out the obvious, but pigeons are birds. Birds that can fly for long, long distances over a relatively short period. So, while it may seem a good idea to you to set the pigeon free in the next town over because your house is just so far away now, think again. They can not only make the journey but as previously established also know exactly where to go.
What you can do instead
You could kill it. Sure, that's a messy, inhumane, unpractical way of solving your problem, but it is a solution to your problem (if you can call it that). Or you could focus on the real issue, and "pigeon-proof" your house. Find out how it got in, and make sure every opening is securely closed so that after you do release it (wherever you decide to do it), it and others won't be able to re-enter your home.
Also read our other bird tip:
How Do You Remove Garage Pigeons?