Ontario laid out a firmer timeline for administering COVID-19 vaccines to seniors Wednesday as advocates urged the federal government to come up with a national plan to inoculate Indigenous people in urban communities. The plan laid out by the Ontario government would see residents aged 80 and older receive shots starting the third week of March, though officials stressed much depends on the province’s supply of vaccines. The head of the province’s vaccination task force, retired Gen. Rick Hiller, said those 75 and older should start getting immunized mid-April, and those 70 and older at the start of May. Ontarians 65 and over will be next in June, and those 60 and older will start getting shots the following month. Bookings for vaccinations will be done online and through a service desk, which will become available on March 15, he said. Meanwhile, the National Association of Friendship Centres called on …