Roland Seitre / Hermit / Northern bald ibis (Geroniticus eremita) breeding project of the Jerez de la Frontera Zoo, Cadiz, Spain. Keeper with juvenile birds on open land, keepers wear ibis helmets to limit human impr...

Roland Seitre / Hermit / Northern bald ibis (Geroniticus eremita) breeding project of the Jerez de la Frontera Zoo, Cadiz, Spain. Keeper with two chicks pecking his face, keepers wear ibis helmets to limit human impr...

Jerry Monkman / Woman mountain biking on a trail in an abandoned granite quarry on Millstone Hill, Barre, Vermont, USA. autumn. Model released, October 2010

Alex Hyde / Helmet Vanga (Euryceros prevostii) on nest incubating eggs. Masoala Peninsula National Park, north east Madagascar. IUCN Vulnerable Species.

Jeff Wilson / Rear view of pilots and Trango towers in the Karakoram Mountains, Himalayas, Pakistan, from Pakistani military helicopter, for BBC series Planet Earth. April 2005

Jerry Monkman / A man rock climbing near the top of Cathedral Ledge. Echo Lake State Park, White Mountains, in North Conway, New Hampshire, USA. October 2009, Model released

Jerry Monkman / Man walking with his climbing gear at Lower Slab in Pawtuckaway State Park, New Hampshire, USA, September 2008. Model released.

Jeff Vanuga / Snowmobiling in the Bridger - Teton National Forest on Togwotee Pass near Dubois, Wyoming. Model released, January 2009

Nick Garbutt / Helmet Vanga {Euryceros prevostii} sitting on nest incubating clutch, Marojejy NP, North east Madagascar.

Mark Taylor / Silver tabby chinchilla Persian male cat, Cosmos, wearing a police helmet.

Philippe Clement / Bleeding mycena / Bleeding fairy helmet / Burgundydrop bonnet (Mycena haematopus) on tree trunk in autumn forest, Belgium, October

Oriol Alamany / White / Long crested helmet shrike (Prionops plumata), Kruger National Park, Transvaal, South Africa, September.