DIJKSEN LJ (1988) Current research: Birthplace loyalty by songbirds. LIMOSA 61 (2): 100-100.

In the nature Westerduinenl Bleekersvallei (c. 300 hall on Texel by me since 1975 a total of 3840 nestlings of passerines ringed (c. 300 per year), the Most of widespread species such as Meadow Pipit, Willow Warbler and Linnet and the less common Wheatear and Warbler. After 1975 were settled in the area ringed seen as breeding songbirds. The question was an hand the extent to which birds were ringed spot. The ringed birds could not be captured and checked, because I only have a permit for the ringing of nestlings. With the permission of the Vogeltrekstation was started in 1985 with the construction color ring, in addition to the aluminum ring Vogeltrekstation. Given the different litters Sweater color combinations. The ring sites (nest sites) and the corresponding color-coded maps are accurate to subscribed. Seen from back, color-breeding birds is now the distance between birth nest and nest (or territory) to be determined.

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