Birds actually like to stick their heads in things and chirp/sing because of the way the sound waves bounce off the inside. It’s like the birb version of when you yell HELLOOOOO into a canyon to hear the echo :)
having a permanent full time job is you thinking to yourself “so this is really the rest of my life huh” as you come home every single day before using your 4 hours of recreational activity to do nothing and then going to bed
