![Kane Brides on Twitter: "A few more colour-ringed Black-headed gulls added to our #NWBHGs study today. Over 60 rings read of birds previously ringed in Cumbria, now back from their Scandinavian/European breeding Kane Brides on Twitter: "A few more colour-ringed Black-headed gulls added to our #NWBHGs study today. Over 60 rings read of birds previously ringed in Cumbria, now back from their Scandinavian/European breeding](https://pbs.twimg.com/media/EEvatUYXUAIvunV.jpg:large)
Kane Brides on Twitter: "A few more colour-ringed Black-headed gulls added to our #NWBHGs study today. Over 60 rings read of birds previously ringed in Cumbria, now back from their Scandinavian/European breeding
![Gray / Canada / Whiskey Jay (Perisoreus canadensis) Colour-ringed bird. Algonquin Provincial park, Ontario, Canada. October Stock Photo - Alamy Gray / Canada / Whiskey Jay (Perisoreus canadensis) Colour-ringed bird. Algonquin Provincial park, Ontario, Canada. October Stock Photo - Alamy](https://c8.alamy.com/comp/W7ND67/gray-canada-whiskey-jay-perisoreus-canadensis-colour-ringed-bird-algonquin-provincial-park-ontario-canada-october-W7ND67.jpg)
Gray / Canada / Whiskey Jay (Perisoreus canadensis) Colour-ringed bird. Algonquin Provincial park, Ontario, Canada. October Stock Photo - Alamy
![The Gray / Canada / Whiskey Jay (Perisoreus canadensis) Colour-ringed bird. Algonquin Provincial park, Ontario, Canada. October Stock Photo - Alamy The Gray / Canada / Whiskey Jay (Perisoreus canadensis) Colour-ringed bird. Algonquin Provincial park, Ontario, Canada. October Stock Photo - Alamy](https://l450v.alamy.com/450v/w7nd68/the-gray-canada-whiskey-jay-perisoreus-canadensis-colour-ringed-bird-algonquin-provincial-park-ontario-canada-october-w7nd68.jpg)
The Gray / Canada / Whiskey Jay (Perisoreus canadensis) Colour-ringed bird. Algonquin Provincial park, Ontario, Canada. October Stock Photo - Alamy
PLOS ONE: Causes of Ring-Related Leg Injuries in Birds – Evidence and Recommendations from Four Field Studies
![Injuries on Brown Thornbill legs caused by plastic colour ring in upper... | Download Scientific Diagram Injuries on Brown Thornbill legs caused by plastic colour ring in upper... | Download Scientific Diagram](https://www.researchgate.net/profile/Michael-Griesser/publication/234023791/figure/fig4/AS:300053810958351@1448549811309/Injuries-on-Brown-Thornbill-legs-caused-by-plastic-colour-ring-in-upper-position-Since.png)