Question

final assessment - waterfowl ecology
waterfowl ecology
1 of 10
what is the speculum on waterfowl?
○ bright - colored patch on the secondaries of dabbling ducks
○ range of colors waterfowl can exhibit
○ differences in bill coloration
○ bright - colored patch on the secondaries of diving ducks

Explanation:

The speculum is a distinct, bright-colored feather patch located on the secondary wing feathers of many waterfowl, including both dabbling and diving ducks, but the most accurate option here specifies dabbling ducks as a core group where this feature is prominent and well-recognized. The other options incorrectly describe unrelated traits or limit it only to diving ducks, which is not accurate.

Answer:

Bright-colored patch on the secondaries of dabbling ducks