1
an ornithologist
She is an ornithologist who studies migratory birds.
她是一位研究候鸟的鸟类学家。
鸟类学者；鸟类学家
先理解核心含义，再看它在真实句子里的用法。
鸟类学者；鸟类学家
a zoologist who studies birds
She is an ornithologist who studies migratory birds.
她是一位研究候鸟的鸟类学家。
鸟类学家；研究鸟类学的人。
A person who studies or practices ornithology.
The ornithologist spent the morning watching a rare bird near the lake.
那位鸟类学者花了一上午在湖边观察一种珍稀鸟类。
My aunt is an ornithologist and often travels to different countries to study birds.
我姑姑是一位鸟类学家，经常去不同国家研究鸟类。
The young ornithologist carefully wrote down the color and size of each bird she saw.
那位年轻的鸟类学者仔细记下她看到的每只鸟的颜色和大小。
She is an ornithologist who studies migratory birds.
她是一位研究候鸟的鸟类学家。
who 引导的定语从句说明具体研究领域。
The ornithologist who specializes in seabirds gave a lecture.
专门研究海鸟的鸟类学家做了一场讲座。
as 表示“作为……”，常用于介绍职业身份。
As an ornithologist, he spends months in the field.
作为鸟类学家，他会在野外待上好几个月。
Not this
She is ornithologist and works at the museum.
Use this
She is an ornithologist and works at the museum.
ornithologist 是可数名词单数，作表语时不能裸用，需要加冠词 an。中文没有冠词，学习者容易漏掉。
Not this
I study ornithologist at the university.
Use this
I study ornithology at the university.
ornithologist 指人（鸟类学家），ornithology 才是学科（鸟类学）。表示研究某个学科时要用 -ology 名词，不能用指人的 -ist 名词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
业余鸟类学家
An amateur ornithologist spotted a rare warbler in the park.
一位业余鸟类学家在公园里发现了一只罕见的莺。
职业鸟类学家
As a professional ornithologist, she spends months tracking migratory birds.
作为职业鸟类学家，她花数月时间追踪候鸟。
野外鸟类学家
The field ornithologist recorded the birds' nesting behavior.
这位野外鸟类学家记录了鸟类的筑巢行为。
著名的鸟类学家
A renowned ornithologist from Cornell gave a lecture on owls.
一位来自康奈尔大学的著名鸟类学家就猫头鹰发表了演讲。
Use ornithologist naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 ornithologist 联想成“哦，你在树上观察鸟的学者”——鸟儿在枝头，学者拿望远镜数，记作鸟类学家。
语域：neutral 常见场景：学术论文、科普文章、人物介绍 该词为鸟类学专家的正式称谓，语气中性；多用于学术、科普或人物介绍等场景，日常口语中有时也会用 bird expert 等更通俗的说法。
以上 -ologist 单词的重读元音均为 /ɒ/，从重读音节起与 ornithologist 押韵（/ɒlədʒɪst/）。注意形近词 ornithology /ˌɔːnɪˈθɒlədʒi/ 结尾是 /ədʒi/，与 /ədʒɪst/ 不同，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.