‘Each Little Factor’ Overview: Tiny Hummingbirds Carry Huge Classes in Nature-Meets-Nurture Documentary

The slow-motion footage in “Each Little Factor” of hummingbirds captured in flight, or beak deep in a flowering bud or hovering at 50 beats per second are awe-nudging. Director Sally Aitken’s nature documentary comes as a balm in a season aching for uplift. Since 2008, hummingbird sage Terry Masear has…