[gowld]

Not quite. First you need to eliminate your own hung piece blunders and look for opponents'. But that gets you to 1000-1500 then you need to notice tactics.

There is overlap, in that the simplest single-move tactics (forks and skewers) are almost the same as catching immediately hung pieces.

[jeremysalwen]

I would argue that hung pieces are just single ply tactics. Also significantly you must notice your opponents tactics as well as you own.