Hey @choogirl! Thanks for your comment. It's great to have you stop by. You're right, the population growth will stall due to the factors you've mentioned, but that's one of the limitations of this model because at this level it doesn't take these factors into account. We would need a more sophisticated model.

However, I'm guessing the sheer number of pigeons will become problematic before we get to levels where their growth naturally stalls. So my next post will be about controlling population through (sadly) culling. I guess that's an environmental problem we've created for ourselves by providing them with such an abundant environment :)