Ducks quiz

More questions about Ducks

These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.

1. 1 Easy

   What common name identifies a baby duck?

   Answer: Duckling

   Why: Baby ducks are ducklings, while young swans are called cygnets and young geese are known as goslings.

2. 2 Medium

   What lines a duck's bill edges and strains food from water?

   Answer: Lamellae

   Why: Most dabbling ducks have 50 to 70 lamellae on each mandible, but shovelers have about 400 in all: 180 on the upper bill and 220 on the lower.

3. 3 Hard

   Which South American duck always lays its eggs in other birds' nests?

   Answer: Black-headed duck

   Why: Black-headed ducklings are precocial, leaving the host nest within hours of hatching without harming the host's chicks.

4. 4 Easy

   How do sleeping ducks stay alert for potential predators?

   Answer: Sleep with one eye open

   Why: Mallards at a sleeping row's ends spend about 150 percent more sleep time with one eye open than those in the middle, looking outward.

5. 5 Medium

   Which colorful East Asian duck symbolizes lifelong love?

   Answer: Mandarin duck

   Why: Mandarin ducks became classic wedding symbols in East Asia because folklore held they mated for life.

6. 6 Hard

   What is the iridescent wing patch on a dabbling duck called?

   Answer: Speculum

   Why: The shimmer of a duck's speculum is structural coloration produced by light interference rather than chemical pigment.