Bird migration is one of the world's most extraordinary wonders. Millions of birds travel thousands of miles, only to make the return journey a few months later.
As a topic for school work it can draw on the excitement and mystery that lie behind it. Pupils can see the changes it brings to their locality - swallows, martins and swifts here for the summer, redwings and fieldfares here, even in the school grounds, for the winter. It is one of the supreme examples of how animals adapt to seasonal changes.
Discovering why and how birds migrate, and how they find their way, involves understanding the changing seasons, the apparent movements of sun and stars, the weather and the climate. It should provide material especially for science and geography, but also across the whole curriculum.