LONDON (Agencies) - Nikola Zigic gave Birmingham City a 1-0 away to West Ham on Sunday that moved the Blues out of the relegation zone and dropped their fellow strugglers to the foot of the Premier League table. The giant Zigic secured a precious three points for the Blues, now 16th in the standings, when he headed in powerfully from close range after getting on the end of Sebastian Larsson's free-kick midway through the second half. Defeat for West Ham manager Avram Grant on his 56th birthday is bound to increase the speculation surrounding the Israeli's position at Upton Park although the former Chelsea and Portsmouth boss has seen several bosses at other clubs come and go while clinging on to the reins in east London. Birmingham beat West Ham, midweek winners against Blackpool, in the English League Cup last month but it was the hosts who started the better on Sunday.