The birb army has been defeated and banished from Sandbox. I received this letter from them:

dear sandbox owner shartz99,

we are the birbs. we surrender the lobby to you. the sandbox forces were too strong, and the fufus were as well. but we will be back! in greater numbers!

au revoir!

the birbs

p.s. youll never find out who our agent is! bwahahaha!

Thank you everyone who participated in the birb invasion. Here's a little something to put on your profiles to show that you helped to save sandbox (or tried to bring it down).