... ( Erithacus rubecula ) caught during the day and held in cages overnight with those of birds that were caught at night and sampled immediately. We found that circulating melatonin at night was lower in birds held in cages compared with birds that were actively migrating. This result suggests that temporary...

...Wolfgang Wiltschko; Andrea Möller; Marcus Gesson; Catrin Noll; Roswitha Wiltschko SUMMARY In previous experiments, migratory birds had been disoriented under 635 nm red light, apparently unable to use their magnetic compass. The present study with European robins, Erithacus rubecula , confirms...

... low-sensitive long-wavelength mechanism. * Author for correspondence (e-mail: [email protected] ) 17 9 2002 © The Company of Biologists Limited 2002 2002 migratory orientation magnetoreception magnetic compass European robin Erithacus rubecula...