Solvin Zankl / After an incubation period of 45 to 55 days and several days long ascent through the sand the hatchling Olive ridley turtles (Lepidochelys olivacea) emerge all together. Ostional Beach, Costa Rica, No...
01237799
Pete Oxford / Waved albatross (Phoebastria irrorata) pair at nest after change over for incubation, Punta Suarez, Española Island, Galapagos Islands
00153213
Fred Bavendam / Australian Giant Cuttlefish (Sepia apama) hatchling swimming past the egg of an unhatched sibling after an incubation of about four months, southern Australia
00150726
Fred Bavendam / Horseshoe Crab (Limulus polyphemus) eggs almost ready to hatch after two weeks incubation in the warm sands of Cape Anne, Massachusetts
01100337
WILLIAM OSBORN / Canada goose sitting on eggs at nest {Branta canadensis} Wiltshire England UK
01417635
Paul Hobson / Red throated diver (Gavia stellata) incubating eggs on nest, Iceland June
01417633
Paul Hobson / Red throated diver (Gavia stellata) incubating eggs on nest, Iceland June
01417563
Paul Hobson / Avocet (Recurvirostra avosetta) at nest with eggs, Texel, Holland, May
01408789
Marie Read / Pileated Woodpeckers (Dryocopus pileatus), pair during incubation exchange, female clinging to treetrunk as male comes out of nest hole entrance, spring, New York, USA, May.
01405173
Yukihiro Fukuda / Phoenix Petrel (Pterodroma alba) incubating; this species lays their eggs directly on the ground. Christmas Island, July
01403076
Roger Powell / Stone curlew (Burhinus oedicnemus) pair changing over incubation duties at the nest, Guerreiro, Castro Verde, Alentejo, Portugal, April
01402174
Tui De Roy / Red-footed booby (Sula sula) incubating single egg with webbed feet. Darwin Bay, Genovesa (Tower) Island, Galapagos, Ecuador, June.
01399456
Tui De Roy / Waved albatross (Phoebastria irrorata) incubating egg with specialised ventral plumage. Punta Cevallos, Espanola (Hood) Island, Galapagos, Ecuador, May.
01390884
Nick Upton / 2020VISION / Nigel Jarrett, Aviculture manager, inspects developing Common / Eurasian crane eggs (Grus grus) in an egg-turning incubator, WWT Slimbridge, Gloucestershire, England, UK, May 2009. 2020VISION Exhibiti...
01386479
Roland Seitre / Breeding project of the Hermit / Northern bald ibis (Geroniticus eremita) at the Jerez de la Frontera Zoo, Cadiz, Spain. Two eggs in tray. Critically endangered species. June 2007
01369579
Brent Stephenson / Adelie Penguin (Pygoscelis adeliae) lying down on its stone nest incubating its eggs. Yalour Islands, Antarctic Peninsula, Antarctica, December.
01356728
Konrad Wothe / Brown Honeyeater (Lichmera indistincta) male in nest, Queensland, Australia, October
01372275
Kevin Schafer / Maleo (Macrocephalon maleo) digging nest hole in hot sand for natural incubation, Sulawesi, Indonesia, Endangered
01372274
Kevin Schafer / Maleo (Macrocephalon maleo) digging hole in hot sand for natural incubation, Sulawesi, Indonesia, Endangered
01350664
Terry Whittaker / 2020VISION / Volunteer Warden, Ray Sykes, using night vision optics to observe the Manton Bay osprey pair at night, Rutland Water, Rutland, UK, April 2011. During the incubation period the Osprey nest is observed...
01306663
Solvin Zankl / After an incubation period of 45 to 55 days and several days long ascent through the sand the hatchling Olive ridley sea turtles (Lepidochelys olivacea) emerge from the nest all together. Ostional be...
01306662
Solvin Zankl / After an incubation period of 45 to 55 days and several days long ascent through the sand the hatchling Olive ridley sea turtles (Lepidochelys olivacea) emerge from the nest all together. Ostional bea...
01306649
Solvin Zankl / After an incubation period of 45 to 55 days and several days long ascent through the sand a hatchling Olive ridley sea turtle (Lepidochelys olivacea) emerges from the nest. Ostional Beach, Costa Rica,...
01301605
LYNN M. STONE / Greater Sandhill Crane (Grus canadensis tabida) rolling two eggs for even incubation on mounded nest of reeds in wetland, southern Wisconsin, USA
01283644
Nick Upton / 2020VISION / Nigel Jarrett, Aviculture manager, inspects developing Common / Eurasian crane eggs (Grus grus) in an egg-turning incubator, WWT Slimbridge, Gloucestershire, UK, May 2009. 2020VISION Book Plate.
01274126
David Woodfall / Little terns (Sternula albifrons) pair changing over incubation at nest, Northumberland, UK
00439908
Tui De Roy / Rockhopper Penguin (Eudyptes chrysocome) pair exchanging incubation duties, New Island, Falkland Islands
01249046
Jeff Rotman / Wildlife biologist removing eggs from Pink Salmon (Oncorhynchus gorbuscha) in preparation for incubation. Quinsam Salmon Hatchery, British Coloumbia, Canada, September 2008
01237826
Pete Oxford / Waved albatross (Phoebastria irrorata) pair at nest, change over for egg incubation, Punta Cevallos, Española Island, Galapagos Islands
01237798
Pete Oxford / Waved albatross (Phoebastria irrorata) pair at nest after change over for incubation, Punta Suarez, Española Island, Galapagos Islands
01237797
Pete Oxford / Waved albatross (Phoebastria irrorata) pair at nest after change over for incubation, Punta Suarez, Española Island, Galapagos Islands
01197883
Tim Laman / Philippine Eagle Center director, Domingo Tadena, turns and weighs a precious Philippine eagle egg {Pithecophaga jefferyi} being incubated at the center, Mindanao Island, Philippines, November 2001.
01183475
Gary K. Smith / Baby chickens {Gallus gallus domesticus} under heat lamp, Norfolk, UK, May
00154962
Fred Bavendam / Saddleback Anemonefish (Amphiprion polymnus) eggs on their fourth day of incubation, Bali, Indonesia
00154961
Fred Bavendam / Saddleback Anemonefish (Amphiprion polymnus) eggs on their fourth day of incubation, Bali, Indonesia
01152911
WILLIAM OSBORN / Ostrich {Struthio camelus} turning / candling eggs in incubator, Queensland, Australia
01066049
Doug Allan / King Penguin egg being held off ground by feet {Aptenodytes patagoni}, South Georgia
01137060
Igor Shpilenok / White storks {Ciconia ciconia} place manure in nest to incubate eggs, Russia. Bryanksy
01125422
GEORGETTE DOUWMA / Jawfish {Opistognathus sp} male with eyed brood of eggs in mouth, Borneo
01135053
Jane Burton / Domestic hen's egg {Gallus gallus domesticus} , showing embyro after 72 hours, UK.
00200215
Gerry Ellis / Green Sea Turtle (Chelonia mydas) egg incubation station, Turtle Island, Borneo
00200213
Gerry Ellis / Green Sea Turtle (Chelonia mydas) eggs being retrieved by ranger in preparation for incubation, South Pacific
00141691
Tui De Roy / Great Frigatebird (Fregata minor) female laying egg with male waiting to take over first incubation stint, Genovesa Tower Island, Galapagos Islands, Ecuador
00142936
Tui De Roy / Southern Royal Albatross (Diomedea epomophora) pair changing over duties during 70 day incubation, Mt Lyall Ridge, Campbell Island, New Zealand
00142934
Tui De Roy / Southern Royal Albatross (Diomedea epomophora) sitting on single egg during 77-81 day incubation, Lyall Ridge, Campbell Island, New Zealand
00140672
Tui De Roy / North Island Brown Kiwi (Apteryx australis mantelli) newly-hatched chick still carrying a large yolk reserve after 70 days of incubation, Kiwi House, Otorohanga Breeding Facility, New Zealand
00141015
Tui De Roy / Galapagos Rail (Laterallus spilonotus) pair sharing incubation duties on nest in grass along edge of scalesia forest highlands, Santa Cruz Island, Galapagos Islands, Ecuador
00143271
Tui De Roy / Buller's Albatross (Thalassarche bulleri) endemic to New Zealand's southern islands, pair swapping duties during 69 day incubation, Snares Islands, New Zealand
00143266
Tui De Roy / Buller's Albatross (Thalassarche bulleri) endemic to New Zealand's southern islands, pair reinforcing their mud nest during incubation swap, Snares Islands, New Zealand
00143256
Tui De Roy / Buller's Albatross (Thalassarche bulleri) endemic to New Zealand's southern islands, pair sharing duties during 69 day incubation, Snares Islands, New Zealand
01111946
SIMON KING / Cory's shearwater on nest {Calonectris diomedea} Azores, Atlantic ocean
01111947
SIMON KING / Cory's shearwater on nest {Calonectris diomedea} Azores, Atlantic ocean
01097053
Gabriel Rojo / Silvery grebe on nest with eggs {Podiceps occipitalis} La Pampa, Argentina
01055020
Doug Allan / King penguin carrying egg on feet to keep it warm, South Georgia, Antarctic
01092934
Nick Barwick / Lapwing chick starts to break out of egg {Vanellus vanellus} Mid Yare RSPB Reserve Norfolk UK. After 26-28 days of incubation egg tooth can be seen.
01091129
WILLIAM OSBORN / Brush turkey male tests incubation temperature in nest mound {Alectura lathami}. SE Queensland, Australia Male uses beak to test temperature and then adds or removes soil to regulature temperature
21097058
Gabriel Rojo / Silvery grebe on nest {Podiceps occipitalis} La Pampa, Argentina Macachin
21097054
Gabriel Rojo / Silvery grebe on nest {Podiceps occipitalis} La Pampa, Argentina Atreu-co
21097052
Gabriel Rojo / Silvery grebe on nest with eggs {Podiceps occipitalis} La Pampa, Argentina Atreu-co
21069386
Juergen Freund / Incubator with Hermanns tortoise eggs Breeding station Italy {Testudo hermanni}