Yea I don't know about the different nesting seasons either and I honestly haven't run into any issues with that. That's definitely something to look into though. Since I've started the job three years ago, I've been told my my tech to just destroy the nests. I do know certain species are protected and if we run across those birds, I'm sure we can't destroy them without permission or the right people remove birds and eggs first. Half the time the nests are old and abandoned too.