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

Tui De Roy / Baglafecht Weaver (Ploceus baglafecht) male, Borana Ranch, Kenya

Ann & Steve Toon / Southern greyheaded sparrows (Passer diffusus) reflected in waterhole, Zimanga private game reserve, KwaZulu-Natal, South Africa.

Juergen & Christine Sohns / Masked-Weaver (Ploceus velatus) male weaving nest, Tswalu Game Reserve, South Africa

Juergen & Christine Sohns / Masked-Weaver (Ploceus velatus) male weaving nest, Tswalu Game Reserve, South Africa

Juergen & Christine Sohns / Masked-Weaver (Ploceus velatus) male weaving nest, Tswalu Game Reserve, South Africa

Juergen & Christine Sohns / Masked-Weaver (Ploceus velatus) male weaving nest, Tswalu Game Reserve, South Africa

Martin Willis / Yellow-rumped Munia (Lonchura flaviprymna) male, Kimberley, Western Australia, Australia

Martin Willis / Chestnut-breasted Munia (Lonchura castaneothorax), Yellow-rumped Munia (Lonchura flaviprymna), and Star Finches (Neochmia ruficauda) drinking, Kimberley, Western Australia, Australia

Martin Willis / Crimson Finch (Neochmia phaeton) male, Kimberley, Western Australia, Australia

Dong Lei / Rufous-necked snowfinch (Pyrgilauda ruficollis) with insects in beak, feeding chicks at nest in rock hollow. Sanjiangyuan National Nature Reserve, Qinghai Province, Qinghai-Tibet Plateau, China. Augus...