Zeearenden Haliaeetus albicilla in de noordelijke delta

At least four and maximal six juvenile White-tailed Eagles stayed in the northern delta-area, Netherlands during winter 1995-1996. The first one was observed on September 13, the last on March 25. Often two birds were observed together and at least five times three of these birds stayed on one location. From December the White-tailed Eagles became increasingly ambulant, covering the whole area, visiting suitable spots along the Hollandsch Diep and Haringvliet. This paper gives a review of wintering White-tailed Eagles in the northern delta-area since 1970. Since ca. 1980 the number of wintering birds increases. The Biesbosch seems to be the most important stronghold. However, the western part of the delta becomes increasingly popular. All the White-tailed Eagles observed were juveniles.