flighty

kevytmielinen, häilyväinen

ailahteleva puhekieltä swift
Given to unplanned and silly ideas or actions.
(of a bird) that fly flies easily, or a lot
2013, Diego Gil, ‎Henrik Brumm, https://www.google.com/search?q=splighty&oq=splighty&aqs=chrome..69i57.344j0j8&sourceid=chrome&es_sm=122&ie=UTF-8q=%22flighty%22&tbm=bks&start=40 Avian Urban Ecology

"We know that flighty birds suffer from greater risk of raptor predation, and I assume that it is useful to understand the effects of urbanization because flighty species may be more vulnerable to anthropogenic disturbance."