Definition of ornithologist in US English:

ornithologist

noun

  • A person who studies or is an expert on birds.

    • ‘Soon a few amateur ornithologists from the civil services visited the islands and collected specimens.’
    • ‘Likewise, ornithologists studying neotropical migrant populations historically have focused much of their attention in the temperate zones.’
    • ‘With long hours at the museum and regular forays into the countryside, he eventually established a reputation as one of America's premier ornithologists.’
    • ‘He was a keen ornithologist, a passion which helped him cope with his ferocious workload.’
    • ‘It is also an ornithologists' paradise and is host to over 400 species of birds.’
    • ‘According to many ornithologists it is the most widespread land bird on the planet, found on every continent except Antarctica.’
    • ‘Ornithologists say there's no good way to estimate the worldwide bird population.’
    • ‘Ornithologists estimate that anywhere from 1 to 4 million birds visit the basin on their way to or from their summer breeding and nesting grounds.’
    • ‘Meanwhile ornithologists and environmentalists are examining captive breeding.’
    • ‘I was going to help my cousin, an ornithologist working for the Saudi government, to catch and ring birds.’

Pronunciation

ornithologist

/ˌôrnəˈTHäləjəst/