Abstract
During the spring 2015, a pair of Common Redstarts Phoenicurus phoenicurus successfully raised a five-chick brood in an artificial nest-box designed for and occupied by a pair of Common Swifts Apus apus in southern Sweden. The breeding was monitored by a nest-box camera, which recorded close interactions between the two species. The Common Redstarts initiated the breeding first and had young in the nest when the Common Swifts arrived and initiated breeding by laying their eggs in a nearby nest cup. The breeding overlapped by 15 days between the second and the fourth week of June when all five of the nestlings of the Common Redstart fledged. The Common Swifts raised two young which fledged in early August.
Highlights
During the spring 2015, a pair of Common Redstarts Phoenicurus phoenicurus successfully raised a fivechick brood in an artificial nest-box designed for and occupied by a pair of Common Swifts Apus apus in southern Sweden
At Lund University in South Sweden, 144 nest-boxes designed for Swifts have been incorporated in the upper part of the wall at the fourth floor of the Ecology Building
Breeding pairs of Swifts most often are faithful to their nests, which has been confirmed at the colony at the Ecology Building at Lund University
Summary
During the spring 2015, a pair of Common Redstarts Phoenicurus phoenicurus successfully raised a fivechick brood in an artificial nest-box designed for and occupied by a pair of Common Swifts Apus apus in southern Sweden. Breeding pairs of Swifts most often are faithful to their nests, which has been confirmed at the colony at the Ecology Building at Lund University. As the Swift is a late arriving migrant, the breeding sites and nest-boxes they use are available for other hole-nesting species until mid-May in south Sweden.
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