My plan (and my attempt) to create a native meadow has started and stalled many times over the past few years...but that is another story. One section had some locust trees seed in and begin to take over. There were more than I realized...and by the looks of them, they had been growing for a few years.
Over the summer, I noticed the largest ones...and decided they had to go...but I didn't want to do it when there was a possibility that birds might be nesting in them. Today, I finally took a chainsaw to them.
Not only will I be removing all except the original nestboxes, I plan to make the meadow go back to early stages of succession, so it is less attractive to the house wrens. Removing these invading locust trees is the first step. (We do have several full grown locust on the property, so this will likely be a recurring battle in the coming years.
For now, I am smother the stumps, to prevent regrowth.