Largest bird egg (extinct species): Elephant bird⬆️
Largest bird egg (extant): Ostrich↙️
Smallest bird egg (extant): Hummingbird↘️
📸: National Museum of Scotland, Edinburgh, Scotland.
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Largest bird egg & smallest bird egg (extant species).
Ostrich egg, 1600g, 1.7% of adult mass.
Hummingbird egg, 0.5g, 15% of adult mass.
📸: eggs at Hunterian Zoology Museum, Glasgow, Scotland.
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