Green’s Dictionary of Slang

crow n.4

[play on/abbr. SE crowbar]

a bar counter.

[NZ]G. Meek ‘Wool, Wether And Wine’ Station Days in Maoriland 75: And this shearer’s roll and six quid as well – from the sale of his old bay nag, / Went over the ‘crow’ at the bush hotel for a riotous non-stop jag.