Here’s one reason for the Kings’ three-game losing streak to start their five-game homestand: zero third-period goals against the Toronto Maple Leafs, the Ducks and the Phoenix Coyotes. The Kings’ scoring woes are renowned, but their lack of punch late in in games has been especially harmful in recent contests. Each of their three consecutive losses has been by one goal. The Kings’ defense is the best in the NHL, giving up a puny average of 2.09 goals per game. But their offense is ranked 28th out of 30 teams in the league, averaging 2.35 goals per game. The teams behind them, the Vancouver Canucks (2.32 goals per game) and Buffalo Sabres (1.84) are headed for early vacations when the regular season ends April 13. The Kings are hopeful of another long playoff run.