Which of the following "rules of thumb" do crows seem to follow when making dietary decisions?
A) Take the clam rather than the whelk.
B) Take the heaviest prey item.
C) Take the item easiest to carry.
D) Take the whelk rather than the clam.

Question

Quizplus · Accepted Answer

Crows tend to choose the heaviest prey item because it often contains more food, providing a better energy return for the effort expended.

Which of the Following "Rules of Thumb" Do Crows Seem