Whatever the number killed to date (and we'll never really know), it's pretty certain that many, many more will day in the coming weeks and months from starvation and exposure, as their food sources will take months or years to recover, as will their protective habitat. It's quite likely that there will be several species driven to extinction, as several critically endangered species have had a very significant fraction of their known habitat completely burnt out.
'Silent death': Australia's bushfires push countless species to extinction
https://www.theguardian.com/environm...ies-extinction