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Aves
1
Charadriidae
1
Czajka zwyczajna -- jaja -- pomiar [KABA]
1
Eurasian Lapwing
1
Green Plover
Lapwing
1
Northern Lapwing
1
Peewit
1
Vanellus vanellus
1
birds
1
egg size
1
eggs
1
geographical variability
1
measurement
1
ptaki
1
reproductive investment
1
siewkowate
1
zmienność geograficzna
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