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- Path: sparky!uunet!ogicse!reed!news
- From: pbray@lust.reed.edu (Peter Bray)
- Newsgroups: rec.birds
- Subject: Re: Homing Pigeons
- Message-ID: <1992Nov18.084130.13214@reed.edu>
- Date: 18 Nov 92 08:41:30 GMT
- Article-I.D.: reed.1992Nov18.084130.13214
- References: <1992Nov18.030008.74941@watson.ibm.com>
- Sender: news@reed.edu (USENET News System)
- Organization: Reed College, Portland, OR
- Lines: 24
-
- In article <1992Nov18.030008.74941@watson.ibm.com> andrewt@watson.ibm.com
- (Andrew Taylor) writes:
- >
- > Pigeons navigate via variations in the earths magnetic field. You can
- > "de-program" your pigeons by passing a degaussing wand (like TV
- servicemen
- > use) slowly about 1cm above their head. It will take them about a week
- > to re-program to their current location.
- >
- > Andrew Taylor
-
-
- I remember reading some ethology experiments, though, in which
- homers were blindfolded. True, they did eventually return back to their
- nesting site but this took considerably longer than a sighted pigeon. So,
- the pigeons also must use landmark recognition for orientation; so, even
- though the degausing wand might neutralize one orientating aspect of the
- pigeon the sight ability is still functional. Does this sound right?
- Also even though the pigeon has been "de-programed" I don't think
- it means that he will return to his new site. Won't they still attempt to
- find their original nesting site until they find it, even if they do get
- permanently lost!?
-
- Peter
-