Erkundung und Ausbreitung sind wichtige Merkmale,

„In a follow-up study, the researchers found that flexibility in behavior is linked not only to the exploration of novel environments on a small scale (e.g., a small tent), but also to novel spaces on a much larger scale.

They found that grackles living closer to the edge of the expansion front in California exhibit greater dispersal behavior, with both male and female individuals moving farther away from their parents and siblings. In contrast, females in particular remained close to where they hatched in a population in the middle of the northern expansion front in Arizona.“