Migration

From: Bernuetz, Oliver: WPG <Bernuetz.Oliver_at_cbsc.ic.gc.ca>
Date: Thu, 7 Jan 1999 16:14:00 -0500


My understanding is that most migration occurs for food reasons, not because of the temperature (though there's obviously a relation between the two.

Alex said:

>I think it's not unlikely that a Genertelan bird could manage as far as
>the extreme south of the East Isles, if they can get across the neck of
>the Sea of Fog; Pamaltelan birds may be able to go as far north as
>Teleos, if they can manage a hop of similar length. (Which is actually
>further north than the former, not that that helps much.) Making the
>trans-continental round trip would require a single hop of about
>1500km, which is a little stiff (not sure if there's a terrestrial bird
>that can manage this (this is what we pay Trotsky so lavishly for, isn't
>it?), though there's a hummingbird (fercrisakes) that flies across the
>Gulf of Mexico in one go, when the idiot avian could just go round...);
>or rather more simply, by being a seabird (or other sea creature). Not
>that I have any objection to some sort of ueber-albatross that flies all
>4000km in one go, just for the heck of it, mind you.

According to a BBC educational site a bird called the knot is capable of a 3,000 km non-stop flight!

http://www.bbc.co.uk/heading_south/migration.htm

Whooping Swans migrate 800 km non-stop between Iceland and Britain. (Though they can stop and rest (but not feed) along the way).

The Monarch butterfly migrates at least 3,000 km travelling from southern Canada to southern Mexico.

The Arctic Tern which Alex referred to is the bird that makes a 20,000 km round trip every year from the Arctic to the Antarctic. Hates warm weather I guess.

>Oh, and have a very happy new year, everyone! (_This_ year, in
>Glorantha?)

You too.

Oliver


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