Common Kestrel

Combination of a c-ring with a three alpha-numeric code (on left leg) and metal ring (on right leg).

note 1 : used colours are green with white code ; blue with white code ; white with black code.

note 2 : birds are ringed in the cities Lodz and Warsaw. Birds with green are ringed in the agricultural landscape of Central and East Poland. Birds with blue are ringed in the agricultural landscape of Central and East Poland.

note 3 : a 3 alpha-numeric code of which the first letter is A plus 2 alpha-numeric code, these birds are ringed Wroclaw, SW Poland.

Combination of :
*a (18mm. high) c-ring with a three alpha code (on right leg)
* a (9mm. high) c-ring with a two alpha code and metal ring (on left leg).

note 1 :
Zwolle : 18mm. high ring yellow ; 9mm. high ring black.
Gramsbergen : 18mm. high ring black ; 9mm. high ring yellow.
Friesland : 18mm. high ring red ; 9mm. high ring green.
Maastricht: 18mm. high ring blue.
Beemster : 18mm. high ring green ; 9mm. high ring red.

White ring with a black four alpha-numeric code (first letter C) and metal ring.

note 1 : up to 2014, total 1253 rings delivered during 2008-2014.

note 2 :

Green ring with a white three alpha-numeric code and metal ring. 

note 1 : all birds ringed in the León province (Spain).

Combination of one c-ring.

note 1 : since 2005 some 2500 birds were ringed.

note 2 : most of birds have a red ring under or above the metal ring.

Combination of a c-ring with a white two alpha-numeric code (on left leg) and metal ring (on right leg).

Combination of a c-ring with a white three alpha-numeric code (on right leg) and metal ring (on left leg).

Combination of a c-ring with a white two alpha code (on right leg) and metal ring (on left leg).

note 1 : metal ring is violet.

note 2 : blue rings have been used for 200 birds.

note 3 : birds ringed (violet ring on left leg) during even-numbered years 2008, 2010, 2012.

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).