Well, I slept too long. Now everyone has come and gone and you've done your thank you note, so you may not be hoping for further comment. I know it's an off-the-cuff thing done for fun, which succeeds as such, but I'm going to critique it as if I think you're serious about workshopping because I need the practice.
Even light verse deserves polish, Merlin. You've hit the nail on a topic that everyone can warm to, but missed a lot of opportunities to apply your word wizardry in a way that could make it truly memorable. Even if you are trying to underscore your flippancy leading up to the trees/breeze joke with other statements that scream novice (such as lackluster title, dull little marching words, bland rhymes, elision, first-letter capping, etc.), I would like to see some assurance that you really do know your stuff.
Obnoxious doesn't seem like quite the right word for meter or meaning. Petulant comes to mind as a suitable replacement. Lines 8 & 13 are both a beat short in the middle.
C'mon, let's see what you can do with this.
Mary
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