What are the Risks of migration
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- Getting lost (blown off course or similar) and the effect of this when there is a limited fuel supply.
- Insufficient food to build up tissues to complete the trip.
- Increased chances of disease in weakened or exhausted birds.
- Unfavourable environmental changes (fire, flood, drought) on the migratory route limit the chance of all migrants making the journey safely.
- Unfavourable environments through events at destination that cannot be anticipated.
- Being predated on-route.
- Negative influence of human influence on the environment at staging sites.