whistler

noun

1. someone who makes a loud high sound

Definition categories: person, signaler, signaller

2. large North American mountain marmot

Definition categories: animal, marmot

3. large-headed swift-flying diving duck of Arctic regions

Similar word(s): goldeneye

Definition categories: animal, duck

4. Australian and southeastern Asian birds with a melodious whistling call

Similar word(s): thickhead

Definition categories: animal, flycatcher