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NAO
3
Air temperature
2
Climate change
2
Precipitation
2
Air humidity
1
Bird migration
1
Climate change impact
1
Evolution
1
Indices
1
Non-passerine migrants
1
North Atlantic Oscillation
1
North-atlantic oscillation
1
Solar radiation
1
Spatial patterns
1
Spring arrival
1
Spring arrival response
1
Temperature anomaly
1
Thermal effects
1
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