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Migration of Birds (1950)
Frederick Charles Lincoln and Bob Hines
Twice a year the skies fill with travelers bound for places they have never seen. Frederick Lincoln weighs the theories behind this wonder, from ancestral homelands to changing daylight and drifting continents, and charts when and how different species move. A landmark government study that made bird migration clear to everyone. Follow the flyways with the man who mapped them.
Every copy includes a printable PDF edition, a beautifully typeset book you can print, mark up in the margins, and keep on your shelf. Yours the moment you own it.
49 chapters
- 1MIGRATION of BIRDS
- 2The Mystery of Migration
- 3Advantages of Migration
- 4The Origin of Migration
- 5Northern ancestral home theory
- 6Southern ancestral home theory
- 7Theory of photoperiodism
- 8Theory of continental drift
- 9When Birds Migrate
- 10Movements of species and groups
- 11Nocturnal and diurnal migration
- 12How Birds Migrate
- 13Speed of flight and speed of migration
- 14Altitude at which birds travel
- 15Orientation
- 16Segregation during migration
- 17Where Birds Migrate
- 18Short and undetermined migrations
+ 31 more. The full contents open with the book.
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