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Article
An adult female Sparrowhawk showed different barring on the left wing's 5th primary in comparison to all other primaries. This anomaly was reproduced after moulting.
Article
Dean Hashmi, Auteur ; Dietrich Ristow, Auteur ; Peter Berthold, Auteur ; Ulrich Querner, AuteurThe exclusively nocturnal activity of many procellariiforms at the breeding sites may have evolved due to costs at the colony and/or benefits at sea during daylight. It is therefore possible that the activity patterns within and outside the bree[...]
Article
Dean Hashmi, Auteur ; Dietrich Ristow, Auteur ; Peter Berthold, Auteur ; Ulrich Querner, AuteurThe exclusively nocturnal activity of many procellariiforms at the breeding sites may have evolved due to costs at the colony and/or benefits at sea during daylight. It is therefore possible that the activity patterns within and outside the bree[...]
Article
An European Hobby Falco subbuteo attacks an European Kestrel Falco tinnunculus.
