1. a scientist who studies birds

Examples

• The ornithologist spent hours observing the migration patterns of geese.
• She became an ornithologist after developing a passion for birdwatching as a child.
• The ornithologist identified over fifty species during the field study.
• Local ornithologists are concerned about the declining population of songbirds.
• The museum hired an ornithologist to curate their bird collection.
• An experienced ornithologist can identify birds by their calls alone.