how come i keep finding bugs by my birds stuff?

  i keep finding little dark brown and an worm-like bugs under and by my birds feces and dropped food. then when i went to wrap my bird in a washcloth i have specifically for only them, i found the skin or cocoon of this worm ( but i know its not a butterfly) and then i just washed my hair and wrapped my hair in a towel. when i looked in the mirror i thought i was crazy! a towel only my mom and i use for our hair had one of these COCOONS in it ..... why?? what could it be? and finally, EWWWWW!
Birds gather worms and other bugs to feed. That's probably the reason they keep popping up everywhere. Good luck.-A