This links to a newspaper story about a guy who rigged up his pond to photograph bats drinking water. The results are AMAZING!
http://www.dailymail.co.uk/sciencetech/article-1213851/Stunning-shots-thirsty-bats-swooping-lick-water-garden-pond.html
Bats drinking water
Drat - I missed gabagoo's post. Sorry for the double!