Konrad Wothe / Barn Swallow (Hirundo rustica) mother feeding chicks at nest, Germany

Jouan & Rius / Two Domestic cats outdoors looking in through window, France

Andy Rouse / 2020VISION / Kestrel (Falco tinninculus) perched in broken window pane. Wales, UK, March.

Roland Seitre / European Hornet (Vespa crabro) swarming through window pane. Tours, France, September.

Jouan & Rius / Looking out of window to garden with rain on window pane, Autumn, Aisne, Picardy, France 2010

Stephen Dalton / Biscuit / Bread beetle (Stegobium paniceum) on pane of glass, UK, controlled conditions

Stephen Dalton / Common snail (Helix aspera) climbing up window pane, UK

Stephen Dalton / Sac spider (Clubiona corticalis) on a window-pane, UK

Stephen Dalton / Underside of Sac spider (Clubiona corticalis) viewed through a window-pane, UK

Stephen Dalton / Sac spider (Clubiona corticalis) on a window-pane, UK

Jane Burton / Domestic Cat {Felis catus} Tabby tortoiseshell looking out of a broken pane in an ivy-grown window of a deserted Victorian house.