By the Obama administration's counting, they killed 64 to 117 civillians in airstrikes. Independent estimates, which do not use the "any military age male" definition, put the number at 380 to 801. These higher, independent estimates still put the fraction of civillian or unknown casualties at around 15%. That is what a military that wants to avoid civilian casualties but sometimes makes mistakes looks like.

For comparison, the Israeli government claims that a mere 53% of fatalities are civilians, substantially below independent estimates.