wing-assisted incline running
... that wing-assisted incline running (WAIR) is a hypothesis about the origin of avian flight derived from observing modern partridges?
... that <b id="mwAo4"><a href="./Wing-assisted_incline_running" id="mwAo8" rel="mw:WikiLink" title="Wing-assisted incline running">wing-assisted incline running</a></b> (WAIR) is a hypothesis about the <a href="./Origin_of_avian_flight" id="mwApA" rel="mw:WikiLink" title="Origin of avian flight">origin of avian flight</a> derived from observing modern partridges?