www.bbc.co.uk/news/science-environment-17855194
Please look at this link as it covers important ground on Avian Navigation. You will see that one of our heroes David Keays has established that the magnetite structure in the beaks of pigeons does not exist. The magnetic theory still has problems because you cannot navigate using a compass without knowing where you are, where you are heading and a map.
Richard Nissen
Editor
The Economist have just published a letter I wrote to them regarding a recent academic article on Viking sunstones. In the following letter I put forward what I believe to be an original argument on this popular subject. I have no way of proving this theory, which puts me in good company with the scientists…
In a recent address to RIN Dr Kate Jeffery of the Institute of Behavioural Neuroscience at University College London described a very complete structure for understanding animal navigation. See https://animalnav.org/navigation-networks-in-the-brain/ We at www.animalnav.org have been struggling with exactly these concerns. Prof Jeffery postulates that you need four things to create a navigation system A compass…
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…
Atchoi, E., Mitkus, M., Vitta, P., Machado, B., Rocha, M., Juliano, M., Bried, J. & Rodríguez, A. 2023 Ontogenetic exposure to light influences seabird vulnerability to light pollution. Journal of Experimental Biology 226. doi: 10.1242/jeb.245126. Atchoi 2023 (no pdf) Light pollution critically affects the fledglings of burrow-nesting seabirds, leading to massive mortality events. The successful management of this pollutant depends…
There has been a recent article in the New Scientist 9 August 2014 entitled: “Songbirds really do fly south for the winter” Scientists had postulated that intercontinental migratory songbirds flew north for the summer to breed in order to escape overcrowding and intense competition in the tropics. Most of us had always though that the…
The Cuckoo is one of the migrants we know least about once it leaves the UK, however the BTO track, on their amazing site, the movements of five Cuckoos from breeding grounds in East Anglia to their winter quarters in Africa. http://www.bto.org/science/migration/tracking-studies/cuckoo-tracking Cuckoo tracking what we’ve learnt so far: http://www.bto.org/science/migration/tracking-studies/cuckoo-tracking/what-have-we-learnt Latest Cuckoo tracking news: http://www.bto.org/science/migration/tracking-studies/cuckoo-tracking/european-cuckoo-study…