Annual cycle event | Period name | Description | Coordinates |
---|---|---|---|
Autumn migration | MA1 | First migratory period during autumn migration. From Denmark to South Europe | N: 50°; E: 16.15° |
MA2 | Second migratory period during autumn migration. Sahara crossing | N: 27.5°; E: 25° | |
MA3 | Third migratory period during autumn migration. From Sahel to South Africa | N: − 7°; E: 25° | |
Stopover 1 | First stopover during fall migration in South Europe | N: 44°; E: 20° | |
Stopover 2 | Second stopover during fall migration in Sahel region | N: 11°; E: 30° | |
Stop and go autumn | Non-migratory days inside a migratory bout. Not considered stopovers because of their short duration | Same coordinates as the migratory period it belongs | |
Wintering | Winter grounds | Stationary period between MA3 and MS1. South Africa | N: − 25°; E: 20° |
Spring migration | MS1 | First migratory period during spring migration. From the first nocturnal flight from the winter quarters until the longest stopover (stopover3) that take place in late April-beginning of May | N: − 17°; E: 31.5° |
MS2 | Second migratory period during spring migration. From stopover 3 until the arrival at the breeding grounds in Denmark. Split into two segments to minimise the error estimates in sunrise and sunset times based on coordinates | First segment N: 22.5°; E: 43°; Second segment: N: 46.5°; E: 22.75° | |
Stop and go spring | Non-migratory days inside a migratory bout. Not considered stopovers because of their short duration | Same coordinates as the migratory period to which it belongs | |
Stopover 3 | Third stopover period during spring migration in Northeast Africa | N: 8°; E: 43° | |
Summer (breeding)a | Summer | Days at the breeding site in Denmark | N: 56°; E: 12.3° |
– | Odd flights | Isolated flights performed in the middle of a stopover | Same coordinates as the migratory period to which it belongs |