SEEN - SE European Bird Migration Network
Directional preferences of the Reed Bunting (Emberiza schoeniclus) on autumn migration in the Lviv region

Nataliya Pisulinska

Department of Zoology, Ivan Franko National University of Lviv, Ukraine

The study on passerines orientation was made in the “Cholginsky” ornithological reserve during August 2000–2005. The study site was placed 50 km west from Lviv, between the villages of Tarnavytsya, Cholgyni and Ruleve of Yavoriv district. Birds were tested shortly after their capture with Busse’s orientation cages for 10 or 15 minutes. 194 orientation experiments (75 for young and 114 for adult individuals) were done on the Reed Bunting in 2000–2005.
Comparing the data of all birds in 2000–2005, one should notice that in 2001, 2004 – 2005, and two others are feebly marked, in contrast to 2000 and 2002 – when there were defined two equally marked and one more feebly marked in 2000. Investigation of orientation in 2003 points to considerable dispersion of migration directions. However, there were few birds, which we took for the experiment (12 individuals). From the results one can mark two main directions of orientation for Reed Bunting in 2000–2005: i.e. WSW (38%) and SSE (36%). And we can see a minor direction to SSW (26%). When giving these direction in degrees, than it will be SSE – 144º, WSW – 258º, and SSW – 204 º(with confidency of 60º: 0º – North, 90º – East, 180º – South, 270º – West).
Thus, we can assume that there exist several different flyways of Reed Buntings. It seems that Reed Buntings migrating across the “Cholginsky” reserve belong to different populations. We have three retraps, confirming SW direction: two from Slovenia and one from Italy.

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