A comment from Steve Debus Regards Shirley Cook —– Original Message —– From: “Steve Debus” <sdebus@une.edu.au> To: “Shirley Cook” <shirleycook@skymesh.com.au> Sent: Saturday, May 16, 2015 11:30 AM Subject: RE: [Birding-Aus] ? Shaw Park, SEQ Hi Shirley, Many, diverse diurnal bird species are learning to forage at night by artificial light, so swallows or martins would not surprise me, but I wonder if these ones might have been insectivorous bats? Bats will also forage around lights for insects, and only one species is readily audible to human ears (most others having ultrasonic ‘sonar’, beyond human hearing, for locating prey and obstacles). The flight of swiftlets has been likened to that of bats, so vice versa would apply. The short tails of bats would not be visible in flight. Cheers, Steve —–Original Message—– From: Shirley Cook [mailto:shirleycook@skymesh.com.au] Sent: Saturday, 16 May 2015 8:11 AM To: Steve Debus Subject: Fw: [Birding-Aus] ? Shaw Park, SEQ Amy idea Steve? —– Original Message —– From: “Judith L-A” <jlukin01@postoffice.csu.edu.au> To: <birding-aus@birding-aus.org>; <royson@uqconnect.net> Sent: Friday, May 15, 2015 11:59 PM Subject: [Birding-Aus] ? Shaw Park, SEQ > Tonight about 10 there was only one floodlight still on at the playing > fields, in the carpark outside the box cafe near the tennis courts, so I > parked under it. There were bugs, sure enough, & shortly several creatures > about swallow-size began shooting through, tangentially to the > light-source. Though too fast to get the bins on, the creatures flew > through the light-glow with a very rapid fluttering motion. They were > ventrally pale, & silent. Tail shape/length were not visible. There were > at > least 4 (max seen at any one time). > ? > Judith > (This note’s from the mobile.) >
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