In order to lighten things up here a bit, I want to share a video with you.

On an island off the coast of New Zealand lives a colony of Kakapo. The kakapo is an extremely rare and endangered species of flightless parrot. They have a problem mating. In Douglass Adams' book 'Last Chance to See' he describes it thusly:

The ways in which it goes about mating are wonderfully bizarre, extraordinarily long drawn out and almost totally ineffective.

Here's what they do:

The male kakapo builds himself a track and bowl system, which is simply a roughly dug shallow depression in the earth, with one or two pathways leading through the undergrowth towards it. The only thing that distinguishes the tracks from those that would be made by any other animal blundering its way about is that the vegetation on either side of them is rather precisely clipped.

The kakapo is looking for good acoustics when he does this, so the track and bowl system will often be sited against a rock facing out across a valley, and when the mating season arrives he sits in his bowl and booms.

This is an extraordinary performance. He puffs out two enormous air sacs on either side of his chest, sinks his head down into them and starts to make what he feels are sexy grunting noises. These noises gradually descend in pitch, resonate in his two air sacs and reverberate through the night air, filling the valleys for miles around with the eerie sound of an immense heart beating in the night.

The booming noise is deep, very deep, just on. the threshold of what you can actually hear and what you can feel. This means that it carries for a very great distances, but that you can't tell where it's coming from. If you're familiar with certain types of stereo set-up, you'll know that you can get an additional speaker called a sub-woofer which carries only the bass frequencies and which you can, in theory, stick anywhere in the room, even behind the sofa. The principle is the same - you can't tell where the bass sound is coming from.

The female kakapo can't tell where the booming is coming from either, which is something of a shortcoming in a mating call. `Come and get me!' `Where are you?? 'Come and get me!' 'Where the hell are you?' `Come and get me!' `Look, do you want me to come or not?' `Come and get me!' 'Oh, for heaven's sake.' `Come and get me!' 'Go and stuff yourself,' is roughly how it would go in human terms. [...]

It's not that they're not willing. When they are in breeding condition, their sex drive is extremely strong. One female kakapo is known to have walked twenty miles in one night to visit a mate, and then walked back again in the morning. Unfortunately, however, the period during which the female is prepared to behave like this is rather short. As if things aren't difficult enough already, the female can only come into breeding condition when a particular plant, the podocarp for instance, is bearing fruit. This only happens every two years. Until it does, the male can boom all he likes, it won't do him any good. The kakapo's pernickety dietary requirements are a whole other area of exasperating difficulty. It makes me tired just to think of them, so I think we'll pass quickly over all that. Imagine being an airline steward trying to serve meals to a plane full of Moslems, Jews, vegetarians, vegans and diabetics when all you've got is turkey because it's Christmas time, and that will give you the idea.

The males therefore get extremely overwrought sitting in their bowls making noises for months on end, waiting for their mates who are waiting for a particular type of tree to fruit. When one of the rangers who was working in an area where kakapos were booming happened to leave his hat on the ground, he came back later to find a kakapo attempting to ravish it. On another occasion the discovery of some ruffled possum fur in the mating area suggested that a kakapo had made another alarming mistake, an experience which is unlikely to have been satisfying to either party.

So, anyway, the BBC is filming another installment of Last Chance to See, 20 years after Adams did his book. Stephen Fry and the original photographer went to visit the Kakapo (which is doing much better, by the way). Here's what happened:

Someone commented that they thought it was nice that the parrot returned for a post-coital cuddle. After I sent it to Matt, he called me. He said he'd gotten the video, he liked it a lot....did I want him to get out the turkey wings tonight??