Andy Rouse / 2020VISION / Wood Warbler (Phylloscopus sibilatrix) juvenile perched. Wales, April. Did you know? Despite inhabiting woodlands, wood warblers prefer to nest on or close to the ground.
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Mark Hamblin / 2020VISION / Research scientists fitting satellite transmitter to Hen harrier chick (Circus cyaneus) for tracking movements after fledging. Glen Tanar Estate, Grampian, Scotland, UK, June 2011. Winner, documentary...
George Sanker / Great blue heron (Ardea herodias), adult feeding chick. Chick close to fledging. Venice Area Audubon Rookery, Florida, USA. March.
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George Sanker / Great blue heron (Ardea herodias) adult feeding two chicks, close to fledging. Venice Area Audubon Rookery, Florida, USA. March.
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Charlie Summers / Broad-tailed hummingbird (Selasphorus platycercus) chick fledging, exercising wings,. Aurora, Colorado, USA. August.
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NaturePL Showreels / Showreel of Rock sparrows (Petronia petronia) feeding chicks at nest, with chicks fledging, Cuenca, Castile-La Mancha, Spain, June. Material by David Perpinan.
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Nick Upton / Common swift chick (Apus apus) almost fully grown stretching its wings and flapping them as it sits on the nest cup in a nest box a few days before fledging, Cambridge, UK, August.
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Nick Upton / Two Common swift chicks (Apus apus), close to fledging, peering out from a nest box under the eaves of a cottage, Hilperton, Wiltshire, UK, July.
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Nick Upton / Two Common swift chicks (Apus apus), close to fledging from a nest box in All Saints Church belfry, inspected during a ringing study, Worlington, Suffolk, UK, July.
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Hermann Brehm / Black woodpecker (Dryocopus martius) male with chicks close to fledging calling from nest, Rothenburg, Germany, May.
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Hermann Brehm / Black woodpecker (Dryocopus martius) female with chicks close to fledging calling from nest hole begging for food, Rothenburg, Germany. May.