Yardbird

yard-bird* (ˈjɑːdˌbɜːd)

noun
1. A military recruit, who performs the most menial of tasks.
Look at the yardbird mopping the mess hall.

Synonyms: desperate case, newbie, recruit, schmuck.

2. A person serving a sentence in prison.
Penpals? She's got half a dozen. That girl always had a thing for yardbirds.

Synonyms: con, convict, crook, felon, inmate, jail bird, law breaker, offender.

slang
1. A no-good criminal.
Lets all the kids smoke drugs back there, but she wants to restrict everyone else's access, while breaking half a dozen fire codes and discriminating against the general population of the place. That lady's nothing but a yardbird, I tell ya'!

Synonyms: bad actor, black marketeer, con, convict, crook, culprit, delinquent, evil doer, felon, fugitive, gangster, heavy, hood, hoodlum, hooligan, hustler, jail bird, lawbreaker, muscle, scofflaw, slippery eel, thug, wrongdoer.

*In the plural form these things may be referred to as a band from the sixties.