28. Garden Warbler
Garden warblers embark on impressive migrations, traveling between Europe and sub-Saharan Africa each year. These small songbirds use a sophisticated blend of navigational tools: they orient themselves by the stars at night, sense the Earth’s geomagnetic fields, and recognize distinctive landscape features along their route. This intricate internal GPS ensures garden warblers find their way across continents and return to their breeding grounds with astonishing consistency. Source: British Trust for Ornithology