sense of direction

"...Birds rely on the location of the sunset to deter-mine which way to fly. To maintain that heading throughout the night, they sense the Earth's magnetic field, just like a pilot uses a compass at night or in bad weather. "It is the simplest and most foolproof orientation mech-anism we can imagine," Wikelski said." by Steven Schultz

haecceity

"You are longitutde and latitude, a set of speeds and slownesses between unformed particles, a set of non subjectified affects. You have the individuality of a day, a season, a year, a life (regardless of its duration) - a climate, a wind, a fog, a swarm, a pack (regardless of its regularity). Or at least you can have it, you can reach it." Delueze and Guattari, A Thousand Plateaus