Richard Du Toit / Greater Double-collared Sunbird (Nectarinia afra) male on Pincushion (Leucospermum sp) flower, Western Cape, South Africa

Martin Willis / Victoria's Riflebird (Ptiloris victoriae) male in courtship display, Atherton Tableland, Queensland, Australia. Sequence 2 of 3

Martin Willis / Splendid Fairywren (Malurus splendens) female and male, Queensland, Australia

Phil Savoie / Blue tit (Cyanistes caeruleus) bringing Crab spider (Misumena vatia) prey to nest, Monmouthshire Wales, UK, May.

Andres M. Dominguez / Hawfinch (Coccothraustes coccothraustes) perched on branch amongst Hawthorn (Crataegus sp) berries. Sierra de Grazalema Natural Park, Cadiz, Spain. February.

Hermann Brehm / Coal Tit (Parus ater) with food for the chicks, Germany. April

Hermann Brehm / Coal Tit (Parus ater) by pond, Germany. April

Hermann Brehm / Coal Tit (Parus ater) with food for the chicks Germany. November

Hermann Brehm / Middle spotted Woodpecker (Dendrocopus medius) and Jay (Garrulus glandarius), Germany. October

Hermann Brehm / Starling (Sturnus vulgaris) at the nesthole, Germany. June

Hermann Brehm / Starling (Sturnus vulgaris) feeding young at the nesthole, Germany. May

Peter Lewis / Starling (Sturnus vulgaris) coming into roost at sunset, Brighton, Sussex, England, UK, December.

Peter Lewis / Starling (Sturnus vulgaris) murmuration at Studland, Dorset, England, UK, January.

Peter Lewis / Starling (Sturnus vulgaris) murmuration at Studland, Dorset, England, UK, January.

Peter Lewis / Starling (Sturnus vulgaris) murmuration at Studland, Dorset, England, UK, January.

Peter Lewis / Starling (Sturnus vulgaris) murmuration at sunset, West Pier, Brighton, England, UK.

Peter Lewis / Starling (Sturnus vulgaris) murmuration at sunset, West Pier, Brighton, England, UK.

Peter Lewis / Starling (Sturnus vulgaris) murmuration at sunset, West Pier, Brighton, England, UK.

Peter Lewis / Redstart (Phoenicurus phoenicurus) male, Surrey, England, UK. June.

Peter Lewis / Stonechat (Saxicola torquata) Surrey, England, UK.

Bernard Castelein / Barn swallow (Hirundo rustica) two juveniles, one in flight, the other resting on roof. Klein Schietveld, Brasschaat, Belgium. August.

Bernard Castelein / Barn swallow (Hirundo rustica) juvenile perched on barbed wire. Klein Schietveld, Brasschaat, Belgium. August.

Bernard Castelein / Barn Swallow; (Hirundo rustica), juvenile, Klein Schietveld, Brasschaat, Belgium. August.

John Cancalosi / House finch (Haemorhous mexicanus), two females on Sotol (Dasylirion wheeleri). Sonoran desert, Arizona, USA. July.

Oscar Dewhurst / Red-vented bulbul (Pycnonotus cafer) perched on rock. Karnataka, India.

Oscar Dewhurst / Long-billed sunbird (Cinnyris lotenius) nectaring on flowers. Goa, India. September.

Oscar Dewhurst / Velvet-fronted nuthatch (Sitta frontalis) on tree trunk. Goa, India.

Oscar Dewhurst / Bonnet macaque (Acridotheres tristis) infant eating biscuits provided by humans. Hampi, Karnataka, India.

Oscar Dewhurst / Bonnet macaque (Acridotheres tristis) walking along wall of temple. Hampi, Karnataka, India.

Oscar Dewhurst / Mountain bluebird (Sialia currucoides). Yellowstone National Park, Wyoming, USA. September.

Oscar Dewhurst / Steller's jay (Cyanocitta stelleri) perched on branch. Grand Teton National Park, Wyoming, USA. September.

Oscar Dewhurst / Clark's nutcracker (Nucifraga columbiana) feeding on Pine (Pinus sp) seeds. Grand Teton National Park, Wyoming, USA. September.

Hanne & Jens Eriksen / Common starling (Sturnus vulgaris) with food in beak, on lawn, Sweden. May.

Hanne & Jens Eriksen / Brambling (Fringilla montifringilla) male standing on ground. Norway, May.

Hanne & Jens Eriksen / Black-billed magpie (Pica hudsonia) in flight. Colorado, USA, August.

Hanne & Jens Eriksen / Tawny pipit (Anthus campestris) standing on ground. Oman, March.

Hanne & Jens Eriksen / Great tit (Parus major) perched in tree with fluffed up feathers. Denmark, February.

Hanne & Jens Eriksen / Eurasian blue tit (Cyanistes caeruleus) perched in tree amongst catkins. Denmark, February.

Hanne & Jens Eriksen / Corn bunting (Emberiza calandra) singing, perched on branch. Denmark, May.

Ann & Steve Toon / Warthog (Phacochoerus africanus) with Redbilled oxpecker (Buphagus erythrorhynchus), Zimanga game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Warthog (Phacochoerus africanus) drinking, with redbilled oxpeckers (Buphagus erythrorhynchus), Zimanga game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Warthog (Phacochoerus africanus) drinking, with redbilled oxpecker (Buphagus erythrorhynchus), Zimanga game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Blue waxbills (Uraeginthus angolensi) at water, Zimanga private game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Blue waxbills (Uraeginthus angolensi) and redbilled firefinches (Lagonosticta senegala) at water, Zimanga private game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Cape sugarbird (Promerops cafer), Kirstenbosch National Botanical Garden, Cape Town, South Africa.

Ann & Steve Toon / Arrow-marked babblers (Turdoides jardineii) by water, Zimanga private game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Redbilled oxpecker (Buphagus erythrorhynchus) searching for insects on Warthog (Phacochoerus africanus), Zimanga game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Common waxbills (Estrilda astrild) at water, Zimanga private game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Cape sugarbird (Promerops cafer), Kirstenbosch National Botanical Garden, Cape Town, South Africa.

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

Ann & Steve Toon / Redbilled oxpecker (Buphagus erythrorhynchus) drinking from perch on warthog, Zimanga private game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Large-billed lark (Galerida magnirostris), Western Cape, South Africa.

Ann & Steve Toon / Red-billed firefinch (Lagonosticta senegala), Zimanga private game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Red-billed firefinch (Lagonosticta senegala), Zimanga private game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Pink-throated twinspot (Hypargos margaritatus), Zimanga private game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Green-winged pytilia (Pytilia melba) at water, Zimanga private game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Scaly-feathered finch (weaver) (Sporopipes squamifrons), Kgalagadi transfrontier park, South Africa, February

Ann & Steve Toon / Fork-tailed drongo (Dicrurus adsimilis), Zimanga private game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Pied crow (Corvus albus) at water, Zimanga private game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Whitenecked ravens (Corvus albicollis), Zimanga private game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Pied crow (Corvus albus) pulling tail feather of whitebacked vulture, Zimanga private game reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Pied crow (Corvus albus) pulling tail feather of whitebacked vulture, Zimanga private game reserve, KwaZulu-Natal, South Africa.

Roger Powell / Common stonechat (Saxicola torquatus) perched on barbed wire. Druridge Bay, Northumberland, UK

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

Richard Du Toit / Amethyst Sunbird (Nectarinia amethystina) male on Pincushion (Leucospermum sp) flower, Western Cape, South Africa

Richard Du Toit / Cape Sugarbird (Promerops cafer) male on Pincushion (Leucospermum sp), Western Cape, South Africa

Richard Du Toit / Amethyst Sunbird (Amethyst Sunbird) sub-adult male on King Protea (Protea cynaroides) flower, Western Cape, South Africa

Loic Poidevin / Rufous-naped Lark (Mirafra africana) standing in grass, Masai Mara, Kenya. March.

Staffan Widstrand / Wild Wonders of China / White-crested laughingthrush (Garrulax leucolophus) Tongbiguan nature reserve, Dehong, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Blue whistling thrush (Myophonus caeruleus) Tongbiguan nature reserve, Dehong, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Chestnut thrush (Turdus rubrocanus) Kanding, Sichuan, China

Staffan Widstrand / Wild Wonders of China / Velvet-fronted nuthatch (Sitta frontalis) Tongbiguan nature reserve, Dehong, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Black-throated sunbird (Aethopyga saturata) Tongbiguan nature reserve, Dehong, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Red-billed leiothrix (Leiothrix lutea) Chengdu Panda Breeding Centre, Sichuan, China

Staffan Widstrand / Wild Wonders of China / White-throated fantail (Rhipidura albicollis) Gaoligongshan Nature Reserve, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Large niltava (Niltava grandis) Gaoligongshan Nature Reserve, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Beautiful sibia (Heterophasia pulchella) Gaoligongshan, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Verditer Flycatcher (Eumyias thalassinus) Gaoligongshan, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Verditer Flycatcher (Eumyias thalassinus) Gaoligongshan, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Slender-billed scimitar babbler (Pomatorhinus superciliaris) Gaoligongshan, Yunnan, China.

Staffan Widstrand / Wild Wonders of China / Black-throated sunbird (Aethopyga saturata) female, Gaoligongshan, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Black-throated sunbird (Aethopyga saturata) female, Gaoligongshan, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Silver-eared mesia (Leiothrix argentauris) Gaoligongshan, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Small niltava (Niltava macgrigoriae) Gaoligongshan Nature Reserve, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Grey-sided laughingthrush (Pterorhinus caerulatus) Gaoligong Nature Reserve, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Whiskered yuhina (Yuhina flavicollis) Gaoligongshan, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Chestnut-crowned laughingthrush (Trochalopteron erythrocephalum) Gaoligong Nature Reserve, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Grey-sided laughingthrush (Pterorhinus caerulatus) Gaoligong Nature Reserve, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Grey-headed canary-flycatcher (Culicicapa ceylonensis) Gaoligongshan, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Scaly laughingthrush (Trochalopteron subunicolor) Gaoligongshan, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Red-tailed laughingthrush (Trochalopteron milnei) Gaoligongshan, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Chestnut-crowned laughingthrush (Trochalopteron erythrocephalum) Gaoligong Nature Reserve, Yunnan, China

Staffan Widstrand / Wild Wonders of China / Grey-sided laughingthrush (Pterorhinus caerulatus) Gaoligong Nature Reserve, Yunnan, China