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To better understand how to face to the recurring nuisances caused by the numerous crows in Paris, a study was set up by the National Museum of Natural History at the request of the city's environmental services since July 2015.

It's about capturing and tagging crows, to study their movements and survival.
After five, 577 crows have been captured in Paris and fitted with colour rings with a 3-digit code which allows them to be identified when they are relocated. Each year, the general public and ornithologists communicate to the museum 11083 relocations of ringed individuals, especially in Paris and the close suburbs, but also at longer distances.

This website was created to allow observers to report their observations of colour-ringed crows, and to provide access to the history of each ringed bird. You can thus consult the different observations of a bird, by visualizing its places of observation on a map.

Good observations, beautiful explorations and good crows!

The latest 10 observations of ringed crows 
 
 DateRing codeDepartmentLocalityRoad/SiteObservers  
 18/09/2020   293   Arrondissement de ParisPARISRue Louise Weiss Zeller Stanislas
 18/09/2020   107   Arrondissement de ParisPARISRue des Fossés Saint-Bernard Zeller Stanislas
 18/09/2020   061   Arrondissement de ParisPARISRue des Fossés Saint-Bernard Zeller Stanislas
 18/09/2020   269   Arrondissement de ParisPARISRue des Fossés Saint-Bernard Zeller Stanislas
 18/09/2020   252   Arrondissement de ParisPARISRue des Fossés Saint-Bernard Zeller Stanislas
 18/09/2020   223   Arrondissement de ParisPARISRue des Fossés Saint-Bernard Zeller Stanislas
 18/09/2020   210   Arrondissement de ParisPARISRue des Fossés Saint-Bernard Zeller Stanislas
 18/09/2020   297   Arrondissement de ParisPARISAllée Alfred Lacroix-Edmond Perrier JIGUET Frédéric
 18/09/2020   133   Arrondissement de ParisPARISRue des Fossés Saint-Bernard Zeller Stanislas
 18/09/2020   077   Arrondissement de ParisPARISRue des Fossés Saint-Bernard Zeller Stanislas
 
Top 10 of the most distant
recoveries from ringing
Top 10 of the highest
longevity since ringing
 
Ring codeDistance  
  160   158.433 km
  095   113.688 km
  035   59.652 km
  061   57.493 km
  088   27.280 km
  173   26.196 km
  239   22.594 km
  026   20.413 km
  163   20.413 km
  226   18.438 km
 
Ring codeLongevity /ringing  
  003   1897 jours
  029   1879 jours
  001   1873 jours
  011   1832 jours
  051   1786 jours
  061   1779 jours
  070   1776 jours
  013   1769 jours
  006   1752 jours
  077   1694 jours

  Sources © Arnaud LH - contact site - contact Programme - Crédits photographiques : Marie-Lan Taÿ-Pamart, Yves Gestraud, Frédéric Jiguet