When do bats fly?

From what i know bats will swim if need be such as if they fall in or in to fruit from the surface of the water (or fish, perhaps) here's a link of an image of a bat maybe about to do just that:- google.com/imgres?imgurl=">http://images.google.com/imgres?imgurl=http://www.geocities.com/radar_foxbat/image/Bats/grey_headed_flying_fox_skimming_water_original.jpg&imgrefurl=http://www.geocities.com/radar_foxbat/&usg=__YdJxha03evrI1G_vVwwC_7hs-oM=&h=470&w=900&sz=67&hl=en&start=20&um=1&tbnid=OAFu7mco_47PSM:&tbnh=76&tbnw=146&prev=/images%3Fq%3Dbats%2Bin%2Bwater%26hl%3Den%26sa%3DG%26um%3D1

(hilight with the mouse & copy'n'past in2 the URL if need be) from what I've seen birds walk if they fell they don't have to fly (like us if we fell we don't have to run) so i guess bat will walk sumtimes. Re: John Gjerdrum, sydneyoutsider@hotmail.com