| polymorphism and the evolution of a continuous breeding season in the pigeon, columba livia. | | 1973 | 4522401 |
| homing pigeons develop local route stereotypy. | the mechanisms used by homing pigeons (columba livia) to navigate homeward from distant sites have been well studied, yet the mechanisms underlying navigation within, and mapping of, the local familiar area have been largely neglected. in the local area pigeons pote ntially have access to a powerful navigational aid--a memorized landscape map. current opinion suggests that landmarks are used only to recognize a familiar start position and that the goalward route is then achieved solely using com ... | 2005 | 15875565 |
| pigeons combine compass and landmark guidance in familiar route navigation. | how do birds orient over familiar terrain? in the best studied avian species, the homing pigeon (columba livia), two apparently independent primary mechanisms are currently debated: either memorized visual landmarks provide homeward guidance directly, or birds rely on a compass to home from familiar locations. using miniature global positioning system tracking technology and clock-shift procedures, we set sun-compass and landmark information in conflict, showing that experienced birds can accura ... | 2007 | 17452634 |