oology

thumb|alt=Old illustration, showing 23 birds' eggs of different size and colouring|Mid-19th century illustration showing the eggs of a number of bird species

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Commons category: Bird eggs
P8168: 3950 Yoshida

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~9 min read

Article

15 sections

Contents

History
As a science
As a hobby
Poaching laws
In the UK
In the US
Collecting
Methods
Major research collections
Oologists and egg collectors
Oology related publications
In popular culture
See also
References
External links

thumb|alt=Old illustration, showing 23 birds' eggs of different size and colouring|Mid-19th century illustration showing the eggs of a number of bird species

Oology (; also oölogy) is a branch of ornithology studying bird eggs, nests and breeding behaviour. The word is derived from the Greek oion, meaning egg. Oology can also refer to the hobby of collecting wild birds' eggs, sometimes called egg collecting, birdnesting or egging, which is now illegal in many jurisdictions.