Florian Möllers / Mallard (Anas platyrhynchos), female nesting in window box of a 4th floor flat, Berlin, Germany, June
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Florian Möllers / Photographer Florian Mollers having breakfast beside a female Mallard (Anas platyrhynchos) nesting in window box of a 4th floor flat, Berlin, Germany, June. Model released
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Nick Upton / Nick Upton setting up a remote camera on an extension roof to photograph Common swifts (Apus apus) coming and going from a nest box under the eaves of a cottage, Hilperton, Wiltshire, UK, June 2016. M...
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Nick Upton / Remote camera set up on an extension roof to photograph Common swifts (Apus apus) coming and going from a nest box under the eaves of a cottage, Hilperton, Wiltshire, UK, June 2016.
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Nick Upton / Common swift (Apus apus) flying to its nest in a Swift nest box in the belfry of All Saints Church, Worlington, Suffolk, UK, July.
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Edwin Giesbers / Wood pigeon (Columba palumbus) nesting in window box of balcony. The Netherlands.
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Nick Upton / Common swift (Apus apus) call playback system positioned and turned on successfully by Roger Becket and Peter Grayshon below a nest box they've just fitted into a louvred window in the bell tower of H...
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Nick Upton / Common swift (Apus apus) nest box fitted by Roger Becket and Peter Grayshon into a louvred window in the bell tower of Holy Trinity church, Bradford-on-Avon, Wiltshire, UK, June.
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Nick Upton / Common swift (Apus apus) nest box fitted by Roger Becket and Peter Grayshon into a louvred window in the bell tower of Holy Trinity church, Bradford-on-Avon, Wiltshire, UK, June.
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Nick Upton / Common swift (Apus apus) nest box fitted by Roger Becket and Peter Grayshon into a louvred window in the bell tower of Holy Trinity church, Bradford-on-Avon, Wiltshire, UK, June.
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Nick Upton / Common swift (Apus apus) nest box fitted by Roger Becket and Peter Grayshon into a louvred window in the bell tower of Holy Trinity church, Bradford-on-Avon, Wiltshire, UK, June.
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Nick Upton / Common swift (Apus apus) nest box fitted by Roger Becket and Peter Grayshon into a louvred window in the bell tower of Holy Trinity church, Bradford-on-Avon, Wiltshire, UK, June.