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Migratory Songbird
Phenotypic response to environmental cues, orientation and migration costs in songbirds flying halfway around the world by Heiko Schmaljohann et al. A polar system of intercontinental bird migration by Prof Thomas Alerstam et al. Cross-hemisphere migration of a 25 g songbird by Franz Bairlein et al. One of our heroes Prof Tomas Alerstam has directed us to this fascinating paper by Heiko…
Words change the way we can think
At present it is very unfashionable to talk of spiritual matters. The overwhelming success of technology has made us decide that the world of science trumps all others. I think that we should look at how, perhaps, this scientific success was achieved. As all of us, who speak several languages know, the structure of language…
Avian navigation
Intro This piece has been forwarded to me by one of our editors: Simon Raggett. He gives us the quantum twist. You will also find much written here on the subject of avian navigation based around gravity from our editor Antonio Nafarrate, who has been in communication with the authors of this piece. Please follow…
Does the geomagnetic field intensity affect the flight path of homing pigeons?
Analysis of GPS recorded tracks of intact trigeminal sectioned pigeons. Conditioning studies have shown that the ophthalmic branch of the trigeminal nerve is functionally involved in the perception of the geomagnetic field intensity. However, homing experiments conducted in the field with homing pigeons demonstrated that trigeminal mediation of magnetoreception is neither necessary nor sufficient for…
Ingo Schiffner at RIN11
At RIN11 Ingo Schiffner gave his presentation Mathematical Analysis of Pigeon Tracks (the characterisation of the underlying navigational process). He analysed 167 tracks with birds navigating from four different locations and from two different directions. His theory is that pigeons navigate using at least four different components and these components change over the course of…
Animals finding their way home
One of our board members, Antonio Nafarrate, has brought this intriguing piece of news to our attention – snakes in the Everglades can find their way home. As we have always said, there is something going on with animals who find their way home and this is another example. I have a friend, Jill Moss who…