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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, 686 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 15963 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  
 13/05/2021   065   Département de ParisParisBrigade Fluviale de Paris Philippe
 13/05/2021   367   Département de ParisPARISTerrasse du Bord de l'Eau Laurent Forti
 12/05/2021   326   Paris75020Le cimetière du Père-Lachaise Ella Romanova
 11/05/2021   011   Département de ParisPARISQuai des Tuileries Schmuck jean Jacques
 11/05/2021   003   Département de ParisPARISRue Cuvier Dabir-Moghaddam Diane
 11/05/2021   079   Département de ParisPARISAvenue Pierre Mendès-France Mollon Fabien
 10/05/2021   391   Département de ParisPARISAvenue Jean Jaurès Vrupp
 10/05/2021   177   Département de ParisPARISBoulevard de la Bastille Patrick Decory
 10/05/2021   182   Département de ParisPARISRue Cuvier Patrick Decory
 10/05/2021   100   Département de ParisPARISRue Cuvier Patrick Decory
Top 10 of the most distant
recoveries from ringing
Top 10 of the highest
longevity since ringing
Ring codeDistance  
  013   263.734 km
  000   196.152 km
  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
Ring codeLongevity /ringing  
  003   2134 jours
  011   2133 jours
  001   2131 jours
  006   2102 jours
  008   2096 jours
  029   2087 jours
  039   2049 jours
  061   2000 jours
  070   1996 jours
  013   1995 jours

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