Throughout history, the stars have provided humans with ever more information about our
world, enabling increasingly accurate systems of navigation in addition to fuelling some of …

Migratory birds use several different sources of orientation information. They have at least
three compass systems based on different cues: the sun and polarized light, the stars and …

The question of how migrating birds find their way to winter quarters and back has
fascinated humans since the beginning of scientific research into avian biology. Migrating …

Determining the East-West position was a classical problem in human sea navigation until
accurate clocks were manufactured and sailors were able to measure the difference …

Migratory birds use different global cues including celestial and magnetic information to
determine and maintain their seasonally appropriate migratory direction. A hierarchy among …

One of the most unusual features of the avian magnetic compass is its sensitivity to weak
oscillating magnetic fields (OMF) in the radiofrequency range. This effect, observed earlier in …

Three compass systems based on global cues known to exist in migrating birds are
reviewed. Two of these systems are based on celestial cues, a time-dependent sun …

Weak oscillating magnetic fields (OMF) in the radiofrequency range are known to disrupt the
orientation of birds. However, until now, it has not been experimentally verified that the …

Migratory birds can use a variety of environmental cues for orientation. A primary calibration
between the celestial and magnetic compasses seems to be fundamental prior to a bird's …

Вопрос, как мигрирующие птицы находят дорогу к районам зимовок и обратно к местам
размножения, занимал исследователей с начала научного изучения биологии птиц …