Woodpeckers

Combination of c-rings :
* up to 2 c-rings on each leg (the same combination)
* metal ring (left or right and above or below the c-rings). 

note 1 : project started during 2014 in the Western Pyrenees.

note 2 :  Objectives of the study is to estimate from a western to eastern gradient (from the strongest density known towards the lowest), the rates of survival and of turn over of the adults on the territories of reproduction.
Estimate the genetic isolation of the pyrenean population with regard to (compared with) the others taxons of lilfordi further east of Europe and with regard to (compared with) leucotos.

note 3 :