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ornithology

American  
[awr-nuh-thol-uh-jee] / ˌɔr nəˈθɒl ə dʒi /

noun

  1. the branch of zoology that deals with birds.


ornithology British  
/ ˌɔːnɪθəˈlɒdʒɪkəl, ˌɔːnɪˈθɒlədʒɪ /

noun

  1. the study of birds, including their physiology, classification, ecology, and behaviour

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

ornithology Scientific  
/ ôr′nə-thŏlə-jē /
  1. The scientific study of birds.


Other Word Forms

Derived Forms

Etymology

Origin of ornithology

From the New Latin word ornithologia, dating back to 1645–55. See ornitho-, -logy

Explanation

Ornithology is the scientific study of birds. Zoology is the broad field that studies animals, but there are as many subfields as there are critters. One is ornithology: the study of birds. This includes tiny birds like finches and huge birds like vultures. Ornithologists study bird songs, feathers, migration patterns, and everything else about birds. People who are experts in ornithology — ornithologists — go to graduate school, but you don't have to study birds in school to be interested. Birdwatchers know a lot of ornithology too.

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Vocabulary lists containing ornithology

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It says it has conducted one of the largest known ornithology surveys in the world as part of the application process and that it disagrees strongly with the points put forward in the letter.

From BBC • Apr. 29, 2025

"Most hummingbirds drink while they're hovering mid-flight," said Rico-Guevara, who is also curator of ornithology at the UW's Burke Museum of Natural History and Culture.

From Science Daily • Dec. 5, 2024

Found materials, including street signage rulers, ornithology illustrations and children’s drawings, festoon the canvas, mingling with hurried chalk annotations and prays of gestural brushwork resembling graffiti.

From New York Times • Mar. 28, 2024

Enchanted by catbirds singing near her new home, she signed up for an ornithology class and became a regular at Warner Park, a recreation center and urban wildlife refuge.

From Los Angeles Times • Mar. 6, 2024

I imagine it’s someone I haven’t met yet, someone I somehow missed while I was hiding out in the ornithology stacks and they were tearing through poetry and memorizing lines.

From "Sparrow" by Sarah Moon

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