About: E.G. Franz Sauer

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Edgar Gustav Franz Sauer (September 4, 1925 - 1979), often rendered E.G. Franz Sauer, was a German ornithologist. He and his wife, Eleanor Sauer, experimented in the 1950s on warblers and how they orient at night. They kept warblers during Zugunruhe in circular cages with a glass bottom and watched the direction they pointed when they tried to fly. They discovered that on starry nights the birds attempted to go towards their appropriate migratory direction, but on cloudy nights they were less active and less precise. This led to the theory that the warblers were trying to migrate using the stars. They tested, and proved, this hypothesis using a homemade planetarium. When the stars in the planetarium disappeared, the birds were disoriented.

Attributes	Values
rdf:type	Thing foaf:Person person dul:NaturalPerson Eukaryote Person Human Animal animal eukaryote species schema:Person
rdfs:label	E.G. Franz Sauer (en)
rdfs:comment	Edgar Gustav Franz Sauer (September 4, 1925 - 1979), often rendered E.G. Franz Sauer, was a German ornithologist. He and his wife, Eleanor Sauer, experimented in the 1950s on warblers and how they orient at night. They kept warblers during Zugunruhe in circular cages with a glass bottom and watched the direction they pointed when they tried to fly. They discovered that on starry nights the birds attempted to go towards their appropriate migratory direction, but on cloudy nights they were less active and less precise. This led to the theory that the warblers were trying to migrate using the stars. They tested, and proved, this hypothesis using a homemade planetarium. When the stars in the planetarium disappeared, the birds were disoriented. (en)
foaf:name	Edgar Gustav (E.G.) Franz Sauer (en)
name	Edgar Gustav Franz Sauer (en)
birth date	1925-09-04 (xsd:date)
dcterms:subject	1925 births 1979 deaths German ornithologists
Wikipage page ID	67717846 (xsd:integer)
Wikipage revision ID	1101894253 (xsd:integer)
Link from a Wikipage to another Wikipage	University of Freiburg 1925 births Common whitethroat Animal navigation Planetarium 1979 deaths German ornithologists Mannheim Warbler Ornithologist Zugunruhe Migration (birds)
sameAs	E.G. Franz Sauer E.G. Franz Sauer E.G. Franz Sauer E.G. Franz Sauer
dbp:wikiPageUsesTemplate	dbt:Infobox_person dbt:Reflist dbt:Short_description
birth date	1925-09-04 (xsd:date)
death date	1979 (xsd:integer)
known for	Ornithology (en)
nationality	German (en)
has abstract	Edgar Gustav Franz Sauer (September 4, 1925 - 1979), often rendered E.G. Franz Sauer, was a German ornithologist. He and his wife, Eleanor Sauer, experimented in the 1950s on warblers and how they orient at night. They kept warblers during Zugunruhe in circular cages with a glass bottom and watched the direction they pointed when they tried to fly. They discovered that on starry nights the birds attempted to go towards their appropriate migratory direction, but on cloudy nights they were less active and less precise. This led to the theory that the warblers were trying to migrate using the stars. They tested, and proved, this hypothesis using a homemade planetarium. When the stars in the planetarium disappeared, the birds were disoriented. (en)
prov:wasDerivedFrom	wikipedia-en:E.G._Franz_Sauer?oldid=1101894253&ns=0
page length (characters) of wiki page	3061 (xsd:nonNegativeInteger)
birth year	1925-01-01 (xsd:gYear)
death year	1979-01-01 (xsd:gYear)
foaf:isPrimaryTopicOf	wikipedia-en:E.G._Franz_Sauer
is Link from a Wikipage to another Wikipage of	Olbers-Planetarium
is foaf:primaryTopic of	wikipedia-en:E.G._Franz_Sauer

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