An update on the subject !
I hope you all find it interesting, and maybe there will be enough for a RadioLab revisit.

http://www.bbc.co.uk/news/science-environment-17855194

I been going back through past podcasts and found this particually interesting.
The Austrlian link got me thinking about two common greetings used in the Australian dialect of the English language, "How have you been?" and "How are you going?". Both containing direction references, been and going. Have we borrowed this from the Australian Aboriginal languages? Don't know.
Also, for tens of thousands of years Australian Aboriginal art portraying their landscape is represented from a bird's-eye view, hills, rivers, water holes, sacred places etc. This all began from the Dream Time, way before the even the idea of man flying.
I think the whole idea of direction and distance becomes more important in a country so sparsely populated and geographically flat as Australia, population 23 million, but still a very similar size to the U.S.

So wait... people don't constantly keep track of their location? Why not!?

This story reminds me of the tales I've heard of dogs and cats who were moved and then journeyed hundreds of miles to find their way to their old home again. Might be another angle to explore on the topic of lost and found.

The supposedly "new" theory about pigeons using infrasound as a navigational cue was actually first proposed in 1969 by Donald Griffin (the same pioneering biologist who discovered bat sonar as a Harvard undergraduate in the 1930s). In 1977, Marilyn Yodlowski, Mel Kreithen, and William Keeton confirmed that homing pigeons could hear sounds at the relevant frequencies and amplitudes.

There is in fact a new theory about pigeon navigation. Jon Hagstrum, Research Geophysicist at USGS presented his theory at a USGS public lecture in Menlo Park, CA on March 31. His findings indicate that birds use low-frequency acoustic (infrasound) signals to navigate. You can reach Jon at USGS (jhag@usgs.gov) for more info.

What an amazing story. I just feel like I'm a better person for listening to this.

I shot a young buck one time. It had brown fur, a white tail and nubby little antlers. Does that have racial overtones? Of course not! Young buck has been used for a long, long time and it simply means a young male--has nothing to do with race, color, creed or religion.

I was fascinated by this episode!
I enjoyed the part where the linguist comments on "pigeon" languages that involve directional associations. I think she referred to one from Australia.

I have studied aboriginal paintings and culture and have learned that the art is often beautiful abstractions of landscape. These landscapes involve a kind of navigational story, relating directly to events in time and mythology.

I wonder if this and the rest of the one third of languages mentioned relate in any way to the indigenous experiences of these places?

I was fascinated by this episode!
I enjoyed the part where the linguist comments on "pigeon" languages that involve directional associations. I think she referred to one from Australia.

I have studied aboriginal paintings and culture and have learned that the art is often beautiful abstractions of landscape. These landscapes involve a kind of navigational story, relating directly to events in time and mythology.

I wonder if this and the rest of the one third of languages mentioned relate in any way to the indigenous experiences of these places?

I don't understand why the 'middle of the ocean' scenario refutes the 'pigeons with inner compass' argument. It assumes the person is given a compass upon arrival at the unknown location. Pigeons have their compasses with them the whole time.

Thank you for doing the work I would be doing if I could. Yet another, in a long line of interesting episodes. The natural ability of creatures to navigate without access to maps or GPS is fascinating.

ps: There is no 'blot' on this episode. With regard to the comment by BenR, I have lived in various parts of the south for 45 years. 'Young buck' is not at all an exclusive term for a black man.

Big fan of the show (long-time listener, first time blog-commenter...) Sorry to say there's a blot on this episode - the use of the term "young buck". At least in the US South, that's a racially charged term which always referred to a black man. So saying that the male pigeons were rushing to get home to chase out the "young buck" had some racial overtones that I'm sure you didn't mean, but got into your otherwise great (as usual) story.

As someone who is dyslexic, the prospect of existing in a world with no left and right where everyone orients through nautical directions is deeply thrilling. As least, I assume it's my dyslexia that makes this prospect appealing. While I feel most secure navigating by nautical direction, I can't say I have this dead reckoning ability. But it does, still, at the age of 26, take me up to 5 seconds to figure out where "left" and "right" are. How embarrassing. To live without that embarrassment? I'll just have to keep dreaming.

I love these podcasts, and I listen to them every week. Today when I was listening to this specific one about how birds find their way back home, it brought to mind a science article I read recently that may shed some light into how birds can see the electromagnetic currents to help them get home by using quantum entanglement. Pretty intense stuff, but a great read: http://www.wired.com/wiredscience/2011/01/quantum-birds/

Want to improve your dead reconing skills? Try orienteering. http://orienteeringusa.org/

Wasn't there a report recently on NPR that the increase reliance on GPS navigation systems (ie in car) are linked to descreased memory? Big Idea: knowing where you are as you move through space increases your memory. Makes sense, because from what I've heard on the brainscience podcast, the hypocampus is key in recording memories as well as regulating motion. Could someone explore/ expand on this possible connection?

You guys totally should have asked what would happen to those Australians if you blindfolded them. According to another story that Robert did, everybody ends up walking in circles when they have a blindfold on. If these people have a bird's eye view of their surroundings in their mind, maybe this wouldn't happen to them. I really think you should follow up on this connection.

For most of my life I've had an uncanny ability to find my way around. I've often described to others the bird's eye view of the world I have and how it makes it easy to find my way around. I believe this ability was developed when as a teen my Dad and I road motorcycles in the woods and we had to find our way around circuitous trails.
Love this podcast!

Excluding witchcraft and voodoo, the answer is simple. Now I must research the magnetic fields (other than the obvious polar fields). Interesting. I accept the challange. I too, hope my results match Prof. Walcot's answer "we don't know". Because then we'll be on the same page. To say that my conclusion is identical to that of Prof. Wolcot will look good on my resume (when jobs become available).

The amazing navigational ability of these Australian aboriginals seems like it might be a crucially adaptive skill for a nomadic or hunter-gatherer people. I wonder if this was common as humanity spread out from Africa to cover the globe, but was lost when we shifted to agriculture. It would certainly help explain the amazing navigational feats of the polynesian peoples who managed to traverse the vast expanses of the Pacific in wooden canoes.