Peter Cairns / naturepl.com / Close up of leg rings on Eurasian Crane (Grus grus), Hornborga, Sweden, April
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Wild Wonders of Europe / Geslin / Peregrine falcon (Falco peregrinus) chicks, one being put back in nest after being ringed, Sagrada familia cathedral, Barcelona, Spain, April 2009
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Wild Wonders of Europe / Geslin / Peregrine falcon (Falco peregrinus) chick with new rings, Sagrada familia cathedral, Barcelona, Spain, April 2009
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Wild Wonders of Europe / Unterthiner / Young Eleonora's falcon (Falco eleonorae) being ringed by researchers from the Hellenic Ornithological Society, Andros, Greece, September 2008
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John Cancalosi / Researcher tagging White stork chicks at nest {Ciconia ciconia} Spain
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Dave Bevan / Glossy ibis (Plegadis falcinellus) group feeding in grass field, Carmarthenshire, Wales, UK, September 2009
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Michael D. Kern / Research worker banding and recording a bird at the field station of the San Francisco Bay Bird Observatory, California, USA, November 2007
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Michael D. Kern / Research worker banding a bird at the field station of the San Francisco Bay Bird Observatory, California, USA, November 2007
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Jean E. Roche / Ringing of Young European greater flamingos {Phoenicopterus ruber roseus} Camargue, France, June 2008
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Jean E. Roche / Ringing of Young European greater flamingos {Phoenicopterus ruber roseus} chicks are herded into a group, Camargue, France, June 2008
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Jean E. Roche / Ringing of Young European greater flamingos {Phoenicopterus ruber roseus} Camargue, France, June 2008
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Jean E. Roche / Ringing of Young European greater flamingos {Phoenicopterus ruber roseus} Camargue, France, June 2008
