Green’s Dictionary of Slang

(Aus.) a prostitute; thus charity crow, a prostitute who does not charge, esp. to impecunious soldiers during WWII; society crow, an upmarket prostitute, a courtesan; v. crow, to enage in prostitution.

1944		T. Hartley glossary in Simes DAUS (1993) 59: A society crow is a prostitute who moves in high society. A charity crow is a girl who does not charge for her services, a type produced during the war. Similar terms are a residential crow, a bed and breakfast crow.
1952		E. Lambert 20,000 Thieves 200: ‘Got to be pretty low to blackmail a crow, ain’t yer?’.
1954		T.A.G. Hungerford Sowers of Wind 56: ‘The old sheila who runs the joint sends for the police. We had a bit of a job finding Sandy—he’d gone to sleep, and was his crow lousy! But we just got out before the M.Ps came’.
1965		E. Lambert Long White Night 80: ‘Where do yer think? Get a bit of twot.’ ‘That big cafe down on the waterfront. The Universal. The crows hang round there in droves.’.
1979		Herald (Melbourne) 14 Apr. 9: ‘There are some Broady girls out crowing (engaging in prostitution) in St Kilda now’ [Simes:DLSS].
1980		B. Herbert No Names 77: What are you, anyway? A Kings Cross crow. Every Yank in town’s been rootin’ you [AND].