Spring is here, Sah-puh-ring is here!
And in honour of spring, and my most detested bird, I give you this sadistic tune by Tom Lehrer.
I first heard this ditty performed by my beloved voice teacher at her own birthday party (all dressed up as an old lady) and it has been my song every since–whether performing it in front of an adjudicator in a festival, or singing it with an almost inebriated gusto in the halls at work.
One way to alarm your coworkers, I do assure thee.
I must add that if you had pigeons living on your balcony (and dropping frequent payloads there) you would detest them as well–but, my animal-loving friends, I would never ACTUALLY do the things in the song. Not to worry.
Enjoy. I hope this adds a smile to your spring day.
Geralyn Wichers 
My sister and I regularly are found singing this since you introduced me to it. It brings me much joy.
Hah hah! I’m glad.