Common Kestrel

c-ring with a 2 letter code (on tarsus) and metal ring (on other tarsus).

note 1 : c-rings are 16 mm high with colour : green (2006), red (2007), blue (2008) and code in white, while yellow (2009) and code in black.

note 2 :  the project was started in 2006. Birds are ringed in Switzerland as adults to study emigration, immigration and philopatry.

White ring with a black three alpha-numeric code and metal ring.

note 1 :

Green ring with a thee alpha-numeric code and metal ring.

note 1 :

Combination of a white wingtag with a black alpha-numeric code and a green ring (on left leg).

note 1 : birds ringed as ad. or juv. during 2009 on the Tenerife Island (leeward xerophytic scrub).

Combination of a uncoded wingtag (two colours on each wing) and a white ring with a black 3 alpha-numeric code (starting letter "C").

note 1 : used colours are : white, orange, green, yellow, blue, gray.
note 2 : each bird has an unique combination.
note 3 : birds are marked with thes wingtags because they are equipped
with geolocators that need to get back in order to dowload the data. Therefore
all the sightings of these birds are especially valuable !
note 4 : birds can be succesfully reported by only reading the tag and not necessary the colour-ring.    
note 5 : project runs since 2011.

White ring with black 3 alpha-numeric code (starting letter "C").

note 1: about 1100 since 2008 ringed.

1 c-ring (18mm. high) with a three alpha code (on right tarsus) and 1 c-ring (9mm. high) with two alpha code.

1 c-ring (18mm. high) with a three alpha code (on left tarsus).

1 c-ring (blue) with a white three alpha code (on right tarsus) and metal ring (on left tarsus).

note 1 : two c-rings used in case of adult breeding birds.  
note 2 : one c-ring used in case of young/on the nest ringed birds.
note 3 : birds with a blue ring are ringed at the airport Maastricht-Aachen (The Netherlands).