Anup Shah / Grey / Southern Crowned crane (Balearica regulorum) head portrait with crest raised, Masai Mara National Reserve, Kenya. March.

Dietmar Nill / Great crested grebe (Podicepes cristatus) adult with chick on its back, Germany

John Downer / Crowned crane (Balearica regulorum) portrait, captive

Wild Wonders of Europe / Varesvu / Hoopoe (Upupa epops) with cockchafer prey in beak, Pusztaszer, Hungary, May 2008 WWE BOOK. WWE INDOOR EXHIBITION Wild Wonders kids book.

Wild Wonders of Europe / Varesvuo / Hoopoe (Upupa epops) with insect prey in beak, Pusztaszer, Hungary, May 2008. Magic Moments book plate.

Tim Laman / Spines along the back of a marine iguana (Amblyrhynchus cristatus), Puerto Egas, Santiago Island, Galapagos Islands.

Roger Powell / Hoopoe {Upupa epops} male displaying on roof, Castelo Branco, Portugal

Jouan & Rius / Southern / Australian Cassowary (Casuarius casuarius) head portrait, Queensland, Australia

Fabio Liverani / Alpine newt pair {Triturus alpestris} male on left with crest, Italy

LYNN M. STONE / White or Umbrella cockatoo

Hans Christoph Kappel / Hoopoe on perch displaying crest, Neusiedl Austria Europe

Kirkendall-Spring / Spearhead Peak in the distance, viewed from Death Canyon Shelf, Teton Crest Trail, Grand Teton National Park. Wyoming, USA, July 2011