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Arctic Terns
Antarctic
1
Individual variation
1
Latitudinal variation
1
Migration
1
Norway
1
Phenology
1
Timing
1
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480
1
VDP::Mathematics and natural science: 400::Zoology and botany: 480
1
arrival dates
1
breeding
1
migration
1
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