Breeding biology of Purple Sandpipers Calidris maritima on the Hardangervidda, southern Norway
Breeding Purple Sandpipers Calidris maritima were studied within an area of approximately 32 km2 on the Hardangervidda, southern Norway during 1978 to 1986. The minimum average density was 1.0 pairs per km2 in 1984. Clutch sizes were 3-4 (mean = 3.74), and egg sizes were small, reflecting the small size of the females compared to other populations. Hatching was in late June and clutch survival was 75%. The eggs in one nest were believed to have been trampled by a Reindeer. Chick growth was...[Show more]
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