Reed warblers have a sense for magnetic declination Date: August 17, 2017 Source: Cell Press Summary: Researchers recently showed that migratory reed warblers depend on an internal geomagnetic map ...

Credit: WMM 2015 Declination Map. For more information about how to read magnetic declination maps like the one below from NOAA, click here. If you wanted to detect earth’s magnetic field, you would ...

Reading: Magnetic maps helped 18th century mariners. Browse by content type. Featured Quick Read ... Bellin in 1765, shows curved isogones — imaginary lines that connect points on the Earth’s surface ...

First, the birds were tested at the Curonian Spit in Russia, but the changed declination – in combination with unchanged magnetic intensity – indicated a location near Aberdeen in Scotland.

Birds use massive magnetic maps to migrate – and some could cover the whole world Published: February 14, 2021 5:34am EST Richard Holland , Bangor University , Dmitry Kishkinev , Keele University ...

First, the birds were tested at the Courish spit in Russia, but the changed declination – in combination with unchanged magnetic intensity – indicated a location near Aberdeen in Scotland.