Eastern Falanouc occurs in eastern rainforest and adjacent degraded and marshy or overgrown areas. Around Makira (in north-east Madagacar) Eastern Falanouc observations were more frequent in areas close to villages (Farris et al. in review a).  Eastern Falanouc perhaps feeds particularly in slightly degraded areas which may have more open, wet, or muddy areas; however, this suggestion needs to be explored further.

Eastern Falanouc is almost exclusively solitary; however, a female has been recorded travelling with a single juvenile (January). It seems mainly crepuscular with a preference for night-time just before dawn and just after dusk. However, during the hot-dry season it has a variable activity pattern and is no longer primarily crepuscular (Farris et al. in review b).

Eastern Falanouc occurs in eastern Madagascar, from Montagne d’Ambre in the far north to Andohahela and along the banks of the Mandrare River in south-east Madagascar. It occurs in at least eleven localities, mostly below 500 m but occasionally up to 1,000 m.