Migratory birds employ a variety of mechanisms to ensure appropriate timing of migration based on the integration of endogenous and exogenous information. The cues to fatten and depart from the non-br
Partial migration occurs when only some animals in a population migrate. While evidence suggests that migratory strategies are partially controlled by genes, individual and environmental conditions wh
Migration is a complex behaviour that is costly in terms of time, energy and risk of mortality. Thermal soaring birds rely on airflow, specifically wind support and uplift, to offset their energetic c
