Again this year my bunnies disappeared come October. In the Spring and Summer they are everywhere, no doubt due to prime breeding conditions but come Fall... Poof ! , they vanish. The squirrels are still abundant. Could migrating birds of prey be a factor ? I haven't heard of a Tularemia outbreak in the area but there was one a few years back down at Long Point that hit the Musk Rats and bunny populations pretty good.
Maybe if we get some snow I can spot tracks.