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We're seeing large flocks of Robins like we usually do towards the later part of February. This was discussed on this board a little while ago, I think. Anyway, we discussed the reasosn we're seeing them and whether or not it is weather related. But I got to thinking about a possible scientific explanation. The magnetic pole is drifting towards Siberia about 40 miles per year and the the earths magnetic shield is coninuing to weaken like its been doing the past two centuries. Eventually the poles will reverse and magnetic north will be in the south pole, making migratory animals very confused. Its happened hundreds of thousands of years ago.
So is it possible that magnetic disturbances are making bird migartions seem a little premature? Anybody want to share their opinion?
I never heard of a link between migratory birds and the magnetic field, but a quick google search confirmed there may be some validity to your hypothesis.
American robins can stay around in many areas of the US for the whole winter, as long as there are fruit or berries on trees the winter long.
A map in a bird guide book I have shows most states except for the northern ones, have at least some robins sticking around year round.
There's also a European bird known as robin or European robin that's somewhat related but not the same creature.
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