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New Study Fuels Debate About Source of Birds’ Magnetic Sense
This link gives you a very good overview of the latest arguments about whether Cryptochromes, which are sensitive to magnetic fields and exist in the eyes of birds, help with their navigation. All the great and good involved in this field are quoted. I personally do not think that the quantum effects in a Cryptochrome…
Osprey navigation paths
Intro>> The Rutland (England) Osprey Project has been running for 18 years when Ospreys began to breed again on Rutland Water in the UK after 150 years. These birds are cared for by the Rutland Osprey Project who have fitted GPS trackers to some of these birds which give very accurate and detailed data of…
Avian Navigation
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…
Hefted Sheep
This is an English term for sheep that learn to live in a particular location who do not stray from their “land”. For us this is another piece of the jigsaw of how animals operate in the wild and know where “home” is. DEFRA ( Britain’s government Agency for Rural Affairs) asked ADAS to do…
A Sense of Direction – some more examples
I hold the view that animals, the ancient peoples and the Aborigines navigate perfectly well without compasses. This we often call a sense of direction. People with a sense of direction very seldom get lost even on dark nights even in unfamiliar territory. Not everyone has a sense of direction but those who do rely on…
The genetics of migration on the move
Intro to the paper >>>> This paper is important as it begins to investigate a genetic basis to animal navigation and focuses on finding markers to get a grip on understanding the underlying genetic architecture of migration Cross-breeding experiments were carried out in the 80/90s by Peter Berthold and his team at the Max Planck Centre in Seewiesen….