Studies of silvereyes by ornithologist Wolfgang Wiltschko and others have found that the birds appear to see magnetic fields as a faint colour gradient, indicating the local intensity and direction of the field.
Using this item
Department of Conservation
Photograph by Peter Reese
This item has been provided for private study purposes (such as school projects, family and local history research) and any published reproduction (print or electronic) may infringe copyright law. It is the responsibility of the user of any material to obtain clearance from the copyright holder.