The lines of this field run between magnetic north and magnetic south at the two poles.

But the earth's magnetic field is very weak.

The magnets, of course, have a magnetic field around them.

Pigeons can find their way home with the help of the Earth's magnetic field.

In other words, the field of the magnet is near the pigeon's head.

To learn the answer you must know a little about the magnetic field around the world.