Info

290e

Details are only from birds that were followed over one or more complete journey (i.e. part-journeys excluded) and were calculated tions. N: number of birds tracked, A: adult, I: immature, J: juvenile (first-year). aNo difference between adults and juveniles.

bTo first major staging area from which some birds later migrated on to southern Africa.

cExcludes one extreme bird, all juveniles. The author's calculated faster ratio of travel, presumably over only parts of the journey. dFollowed by plane, northward migration post-fledging, all juveniles. Approximate only.

Details are only from birds that were followed over one or more complete journey (i.e. part-journeys excluded) and were calculated tions. N: number of birds tracked, A: adult, I: immature, J: juvenile (first-year). aNo difference between adults and juveniles.

bTo first major staging area from which some birds later migrated on to southern Africa.

cExcludes one extreme bird, all juveniles. The author's calculated faster ratio of travel, presumably over only parts of the journey. dFollowed by plane, northward migration post-fledging, all juveniles. Approximate only.

Spring

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