Nectar drinkende Zwartkoppen Sylvia atricapilla
Nectar-feeding Blackcaps Sylvia atricapilla
Drentse vogels , Volume 27 p. 40- 42
Dijkstra A. 2013. Nectar-feeding Blackcaps Sylvia atricapilla. Drentse Vogels 27: . In the rather cold spring of 2013, a Blackcap pair arrived relatively late on the breeding grounds in a garden in the town of Assen: the male on 15 April, the female 10 days later. Between 30 April and 7 May, the birds were observed foraging for nectar in the flowers of a Prunus domestica, especially during the early morning. By 7 May, the flowers had largely lost their petals, and maximum temperatures had improved (>20ºC). It is thought that nectarfeeding was used as a strategy to obtain an easily digestible food source under circumstances of poor insect supply.
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