A diving bird that seeks food in gravel or sandy substrates underwater; also, a person who dives for gravel.
A compound of 'gravel' (from Old Norse 'greif,' pebble-related) and 'diver' (one who dives). The term emerged to describe specialized foraging behavior in waterfowl.
Graveldiver is a term that captures the precision of old naturalist observations—they literally named birds after their specific feeding technique, showing how closely people once watched the natural world.
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