Arnhem AEB413

18 October 2014, Meijendel, Wassenaar, the Netherlands

© 2018 by Vincent van der Spek

PROVEN SIBERIAN CHIFFCHAFFS (2017 & 2019)

- Pictures of tristis proven by mtDNA (De Knijff et al 2012)
- Additional birds added proven by mtDNA (Van der Spek & De Knijff in prep)

- Birds sampled for our DNA-project in Meijendel, Wassenaar, the Netherlands  

- We can tell you what they look like in an article, but this way you can make up your own mind!

My ringing site in Meijendel, Wassenaar was the first to co-operate with "DNA professor" Peter de Knijff (Leiden University). Soon other sites joined the spectacular ride. Siberian and Scandinavian Chiffchaffs was what we were after. This resulted in a joint publication (De Knijff et al 2012). A follow-up study is expected to be published in 2019.

Photographs of three Siberian Chiffchaffs sampled in the first survey are shown here (of the 4th bird, that I did not see myself, I unfortunately never received the photographs).

Arnhem Y87188

31 October 2009, Meijendel, Wassenaar, the Netherlands

Notes: First bird (nation wide) of the entire project. 1st and 3rd photograph used in De Knijff et al (2012)

Arnhem Y87756

7 November 2010, Meijendel, Wassenaar, the Netherlands

Notes: very interesting bird, with some yellow in the supercilium especially on the right); this bird certainly caused some debate! 1st photograph used in De Knijff et al (2012). High ISO values probably extracted some colour.   

Arnhem Y87787

9 November 2010, Meijendel, Wassenaar, the Netherlands

Notes: high ISO values probably extracted some colour  

Arnhem Y88993

28 October 2012, Meijendel, Wassenaar, the Netherlands

Arnhem Y88994

28 October 2012, Meijendel, Wassenaar, the Netherlands

Arnhem AEB413

19 October 2014, Meijendel, Wassenaar, the Netherlands

Arnhem AEB425

19 October 2014, Meijendel, Wassenaar, the Netherlands

Arnhem AEB495

19 October 2014, Meijendel, Wassenaar, the Netherlands

Arnhem AJP609

17 November 2017, Meijendel, Wassenaar, the Netherlands

Spectogram of the recorded, diagnostic call in the hand (Gijsbert Twigt) 

Arnhem AJP611

17 November 2017, Meijendel, Wassenaar, the Netherlands

Arnhem AJP616

17 November 2017, Meijendel, Wassenaar, the Netherlands

Spectogram of the recorded call (one call, in flight after release)

Arnhem AJP616

29 November 2017, Meijendel, Wassenaar, the Netherlands

And a final one, me with Arnhem AJP616

17 November 2017, Meijendel, Wassenaar, the Netherlands