Because the magnetic compass of birds appears to be an inclination compass, and since most migratory birds inherit a program that tells them to travel in a certain geographical direction for a certain amount of time,
A) migrants from either the north or south hemisphere could use the same migratory program.
B) migrants from the northern hemisphere must have experience with the magnetic field near the equator to navigate correctly.
C) migrants that cross the equator can share migratory programs with birds that migrate within a hemisphere.
D) all of the above.

Question

Quizplus · Accepted Answer

The inclination compass allows birds to detect the angle of the Earth's magnetic field, enabling them to distinguish between poleward and equatorward directions without needing a different migratory program for each hemisphere.

Because the Magnetic Compass of Birds Appears to Be an Inclination