1. people who observe and identify birds as a hobby or for scientific purposes

Examples

• The birders gathered at dawn to spot migrating warblers.
• Experienced birders can identify dozens of species by their calls alone.
• The park attracts birders from across the country during spring migration.
• Local birders reported seeing a rare owl in the nature preserve.
• She joined a group of birders for their weekly walk through the wetlands.
• The birders used binoculars and field guides to document their sightings.