Lin,

Are you sure you the bird is not saying "Drink lager, Drink lager." Seems to be an ongoing debate amongst the guides! :)

The ones in Botswana just chant the name of their country...

Besides, some of us don't like lager and it's ever so hard to get them to sing "Drink Amarula" instead!

My guide says it's 'work haaarder' during work hours and in the evening it's 'drink laaaager'. I like the Botswaaaaaana call the best!