An anonymous reader submits "A well documented test took
place in the north of Israel, in presence of several dozen Internet geeks and
experts. During the test, 3 homing pigeons carried 4 GB (gigabytes) for 100 km
distance, achieving, what apparently looks as pigeons' world record in data
transfer to a given distance. Bandwidth achieved by the pigeons was 2.27
Mbps...Transferring a similar volume of information through a common uplink of
ADSL line would have taken no less than 96 hours..."