•
 |
| Bobolink (Dolichonyx oryzivorus) |
Bobolinks migrate from northern United States and Canada south to Argentina and back again in the spring.
"It would be ludicrous to ask a human teenager to go from a patch of meadow in Maine to an Argentinian marsh and back with no instructions, map, compass, or transportation. The bobolink, through, is far better equipped for the trip. In its genes, it carries all the instruction it needs. Weighing less than two ounces, its body includes a built-in magnetic compass, as well as the fuel and mechanics to power its journey [often over open ocean]. Its brain—about the size of an almond—contains everything it needs to know to navigate to its destination using magnetic fields, polarized light patterns, and stars."
- From Songbird Journeys by Miyoko Chu
•
No comments:
Post a Comment