Ernie Janes / House sparrows (Passer domesticus) perched on building, Morocco, March

Ross Hoddinott / Male house sparrow (Passer domesticus) on barbed wire fence, next to starlings (Sturnus vulgaris). Nr Bradworthy, Devon, UK, December

Florian Möllers / House sparrow (Passer domesticus) perched on the fence of a construction site at the "Tacheles", Berlin, Germany, June

Florian Möllers / House sparrow (Passer domesticus) breeding in the cannon tube of a tank at the Russian War Monument, Unter den Linden, Berlin, Germany, June 2007

Laurent Geslin / Common sparrows (Passer domesticus) two females and a male flying in urban park, Paris. France, November.

Laurent Geslin / Common sparrows (Passer domesticus) two males and a female flying, Paris. France, November.

Laurent Geslin / Common sparrows (Passer domesticus) small flock flying, Paris. France, November.

Ross Hoddinott / Social flock of House Sparrows (Passer domesticus) perched together in snowy hedgerow. Near Bradworthy, Devon, England, UK. January

Ann & Steve Toon / Mixed flock of House sparrows (Passer domesticus) and Chaffinchs (Fringilla coelebs) on bird table after heavy snowfall, UK

Andrew Walmsley / Male House sparrow (Passer domesticus) peched on a fallen Fir tree in heavy rain, Christchurch, New Zealand, March

Wild Wonders of Europe / Wothe / Tree sparrow (Passer montanus) displaying in rose bush, Slovakia, Europe, May 2009

Jose B. Ruiz / Common sparrows (Passer domesticus) interacting near water, Alicante, Spain