By Canadian Press A killer whale calf made her own bid for freedom Friday for a potential reunion with extended family in the nearby ocean, swimming under a bridge at high tide and out of a remote Vancouver Island lagoon where she had been trapped for more than a month. The orca has been the focus of intense rescue efforts since March 23 when her pregnant mother became stranded on a rocky beach near the bridge at low tide and died. The Ehattesaht and Nuchatlaht First Nations say in a statement the calf chose a “clear and glass-calm, star-filled night” at about 2:30 a.m. to swim under the bridge and down the inlet. “I’m very happy,” Ehattesaht First Nation Chief Simon John said in an interview Friday. “It is a…