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  • Saunders Island, West Falkland Island. Nikon D850, 200-400mm @ 400mm, f4, 1/4000 sec, ISO320, Aperture priority
    Black-browed Albatross nesting (4322...jpg
  • Hyacinth macaw (Anodorhynchus hyacinthinus) nesting in an artifical nesting site at Araras Ecolodge, Pantanal, Brazil.
    43550-D.jpg
  • Pair of hyacinth macaws (Anodorhynchus hyacinthinus) nesting in an artifical nesting site at Araras Ecolodge, Pantanal, Brazil.
    43011-D.jpg
  • Black-legged Kitti Wake (Rissa tridactyla) nesting in the bird cliff at Vestre Burgerbukta, Hornsund, south-western Spitsbergen, Svalbard. Do note the tall nest pillar, which is very old and where a new nest is built on top of last year's nest.
    41236-D.jpg
  • Black-legged Kitti Wake (Rissa tridactyla) nesting in the bird cliff at Vestre Burgerbukta, Hornsund, south-western Spitsbergen, Svalbard. Do note the tall nest pillar, which is very old and where a new nest is built on top of last year's nest.
    41235-D.jpg
  • Pair of Flightless Comorants (Phalacrocorax harrisi) nesting at Elizabeth Bay, Isabela, Galapagos. Note the nest built of dead sea urchins.
    42243-D.jpg
  • Northern Gannets, Morus bassanus, nesting in a large bird cliff at the island of Runbde, north-western Norway.  Do note how the birds have built their colorful nests from fishing nets gathered from the ocean.
    41532-D.jpg
  • Northern Gannets (Morus bassanus) nesting in a large bird cliff at the island of Runde, north-western Norway. Do note how the birds have built their colorful nests from fishing nets gathered from the ocean.
    41543-D.jpg
  • Northern Gannets, Morus bassanus, nesting in a large bird cliff at the island of Runbde, north-western Norway.  Do note how the birds have built their colorful nests from fishing nets gathered from the ocean.
    41534-D.jpg
  • Northern Gannets, Morus bassanus, nesting in a large bird cliff at the island of Runbde, north-western Norway.  Do note how the birds have built their colorful nests from fishing nets gathered from the ocean.
    41533-D.jpg
  • Northern Gannets (Morus bassanus) nesting in a large bird cliff at the island of Runde, north-western Norway.
    41542-D.jpg
  • Northern Gannets (Morus bassanus) nesting in a large bird cliff at the island of Runde, north-western Norway.
    41537-D.jpg
  • Northern Gannets (Morus bassanus) nesting in a large bird cliff at the island of Runde, north-western Norway.
    41540-D.jpg
  • Gentoo penguin (Pygoscelis papua) nesting at Sea Lion Island, the Falklands.
    43391-D.jpg
  • Imperial shag (Phalacrocorax atriceps) nesting at Saunders Island, the Falkland Islands
    43289-D.jpg
  • White-fronted Bee-eater (Merops bullockoides) at its nesting place in a mud bank at Lake Nakuru NP., Kenya
    41279-D.jpg
  • Red-footed Booby (Sula sula) nesting at Genovesa, Galapagos.
    44839-D.jpg
  • Red-footed Booby (Sula sula) nesting at Genovesa, Galapagos.
    44833-D.jpg
  • Glaucous Gull (Larus hyperboreus) nesting at Hornsund, south-western Spitsbergen, Svalbard.
    44788-D.jpg
  • Great Skua (Stercorarius skua) nesting at Runde Island, north-western Norway in early July.
    41996-D.jpg
  • Great Black-backed Gull (Larus marinus) nesting. Photo from Hidra, south-western Norway in early May.
    44634-D.jpg
  • Great Black-backed Gull (Larus marinus) nesting. Photo from Hidra, south-western Norway in early May.
    44633-D.jpg
  • Black-legged kittiwakes (Rissa tridactyla) nesting in the window shelf of an old boathouse in Vadsö, Varanger, eastern Finnmark, Norway in March.
    44494-D.jpg
  • Black-legged kittiwakes (Rissa tridactyla) nesting in the window shelf of an old boathouse in Vadsö, Varanger, eastern Finnmark, Norway in March.
    44496-D.jpg
  • Black-legged kittiwakes (Rissa tridactyla) nesting in the window shelf of an old boathouse in Vadsö, Varanger, eastern Finnmark, Norway in March.
    44497-D.jpg
  • Glaucous Gull (Larus hyperboreus) nesting at Hornsund, south-western Spitsbergen, Svalbard.
    41255-D.jpg
  • Antarctic cormorants ((Phalacrocorax bransfieldensis) nesting at Hydrurga Rocks, Antarctica.
    44161-D.jpg
  • Madagascan nightjar (Caprimulgus madagascariensis) nesting in the forest close to Palmarium Resort, eastern Madagascar.
    43500-D.jpg
  • Colony of black-browed albatross (Thalassarche melanophrys) nesting at Saunders Island (close to Rockery cabin), the Falkland Islands.
    43291-D.jpg
  • Imperial shag (Phalacrocorax atriceps) nesting at Saunders Island, the Falkland Islands
    43285-D.jpg
  • Imperial shag (Phalacrocorax atriceps) nesting at Saunders Island, the Falkland Islands
    43286-D.jpg
  • Pair of imperial shags (Phalacrocorax atriceps) nesting at Saunders Island, the Falkland Islands
    43288-D.jpg
  • Great Blue Heron (Ardea herodias) nesting in the mangrowe swamp at Elizabeth Bay, Isabela, Galapagos.
    42244-D.jpg
  • White-fronted Bee-eater (Merops bullockoides) at its nesting place in a mud bank at Lake Nakuru NP., Kenya
    41281-D.jpg
  • Malaysian pied fantail (Rhipidura javanica) nesting in Danum Valley, Sabah, Borneo.
    42684-D.jpg
  • Blue-fronted parrot (Amazona aestiva) nesting. Pantanal, Brazil.
    43020-D.jpg
  • On the top of the Island Genovesa, Galapagos with Nazca Boobies nesting sites.
    78075-D.jpg
  • White morth of Red-footed Booby (Sula sula) nesting at Genovesa, Galapagos.
    44819-D.jpg
  • Red-footed Booby (Sula sula) nesting at Genovesa, Galapagos.
    44821-D.jpg
  • Great Skua (Stercorarius skua) nesting at Runde Island, north-western Norway in early July.
    44720-D.jpg
  • Black-legged kittiwakes (Rissa tridactyla) nesting in the window shelf of an old boathouse in Vadsö, Varanger, eastern Finnmark, Norway in March.
    44495-D.jpg
  • Glaucous Gull (Larus hyperboreus) nesting at Hornsund, south-western Spitsbergen, Svalbard.
    41256-D.jpg
  • Madagascan nightjar (Caprimulgus madagascariensis) nesting in the forest close to Palmarium Resort, eastern Madagascar.
    43499-D.jpg
  • Colony of black-browed albatross (Thalassarche melanophrys) nesting at Saunders Island (close to Rockery cabin), the Falkland Islands.
    43281-D.jpg
  • Colony of black-browed albatross (Thalassarche melanophrys) nesting at Saunders Island (close to Rockery cabin), the Falkland Islands.
    43270-D.jpg
  • White-fronted Bee-eater (Merops bullockoides) at its nesting place in a mud bank at Lake Nakuru NP., Kenya
    41282-D.jpg
  • Black-legged Kitti Wake (Rissa tridactyla) nesting in the bird cliff at Vestre Burgerbukta, Hornsund, south-western Spitsbergen, Svalbard.
    41249-D.jpg
  • Black-legged Kitti Wake (Rissa tridactyla) nesting in the bird cliff at Vestre Burgerbukta, Hornsund, south-western Spitsbergen, Svalbard.
    41247-D.jpg
  • Black-legged Kitti Wake (Rissa tridactyla) nesting in the bird cliff at Vestre Burgerbukta, Hornsund, south-western Spitsbergen, Svalbard.
    41242-D.jpg
  • Hyacinth macaws (Anodorhynchus hyacinthinus) fighting over nesting site. Pantanal, Brazil.
    43012-D.jpg
  • A pair of jabiru storks (Jabiru mycteria) nesting in Porto Jofre, Mato Grosso, Brazil.
    43001-D.jpg
  • Nazca Boobies (Sula granti) nesting at Genovesa, Galapagos.
    44817-D.jpg
  • Great Skua (Stercorarius skua) nesting at Runde Island, north-western Norway in early July.
    44719-D.jpg
  • Pair of Antarctic cormorants ((Phalacrocorax bransfieldensis) at their nesting site at Hydrurga Rocks, Antarctica.
    44162-D.jpg
  • Brown Skua (Stercorarius antarcticus) nesting at Sea Lion Island, the Falklands.
    43396-D.jpg
  • Gentoo penguin (Pygoscelis papua) nesting at Sea Lion Island, the Falklands.
    43392-D.jpg
  • Colony of black-browed albatross (Thalassarche melanophrys) nesting at Saunders Island (close to Rockery cabin), the Falkland Islands.
    43315-D.jpg
  • Imperial shag (Phalacrocorax atriceps) nesting at Saunders Island, the Falkland Islands
    43287-D.jpg
  • Black-legged Kitti Wake (Rissa tridactyla) nesting in the bird cliff at Vestre Burgerbukta, Hornsund, south-western Spitsbergen, Svalbard.
    41251-D.jpg
  • Common Guillemots (Uria aalge) nesting in a cave at the island of Runde, north-western Norway.
    41515-D.jpg
  • Pair of Lesser Adjutants (Leptoptilods javanicus) nesting in Assam, north-eastern India.
    43563-D.jpg
  • Kittiwakes (Rissa tridactyla) nesting in the bird cliff at Bulbjerg, northern Jylland, Denmark. Do note the Indian Chief to the lesft.
    43907-D.jpg
  • Kittiwakes (Rissa tridactyla) nesting in the bird cliff at Bulbjerg, northern Jylland, Denmark.
    43908-D.jpg
  • Nest of the malagasy paradise flycatcher (Terpsiphone mutata) from Berenty, southern Madagascar
    43468-D.jpg
  • Male of southern masked weaver (Ploceus velatus) building nest at Lower Sabie, Kruger NP, South Africa.
    45370-D.jpg
  • Male of southern masked weaver (Ploceus velatus) building nest at Lower Sabie, Kruger NP, South Africa.
    45369-D.jpg
  • Juvenile sand martins (Riparia riparia) in their nest burrows. Photo from south-western Norway in August.
    44746-D.jpg
  • Sand martins (Riparia riparia) at their nest burrow. Photo from south-western Norway in August.
    44744-D.jpg
  • Nest and eggs from the common blackbird (Turdus merula) from Hidra, south-western Norway in May.
    43312-D.jpg
  • Juvenile sand martins (Riparia riparia) in their nest burrows. Photo from south-western Norway in August.
    44747-D.jpg
  • Juvenile sand martins (Riparia riparia) watching the mother approaching their nest cave. Photo from south-western Norway in August.
    44742-D.jpg
  • Village weaver (Ploceus cuccullatus) building nest.  Zimanga, South Africa.
    44001-D.jpg
  • Common waxbill (Estrilda astrild) collecting feathers as nest material. Zimanga, South Africa.
    45292-D.jpg
  • Nest colony of the southern masked veaver (Ploceus velatus) at Sunset Dam, Lower Sabie, Kruger NP, South Africa.
    45348-D.jpg
  • Southern red bishop (Euplectes orix, breeding male) at its nest at Lower Sabie, Kruger NP, South Africa in November.
    45416-D.jpg
  • Southern red bishop (Euplectes orix, breeding male) at its nest at Lower Sabie, Kruger NP, South Africa in November.
    45417-D.jpg
  • Thick-billed weaver (Amblyospiza albifrons) building nest. Photo from Lower Sabie, Kruger NP, South Africa.
    45368-D.jpg
  • Thick-billed weaver (Amblyospiza albifrons) building nest. Photo  from Lower Sabie, Kruger NP, South Africa.
    45366-D.jpg
  • Thick-billed weaver (Amblyospiza albifrons) building nest. Photo from Lower Sabie, Kruger NP, South Africa.
    45363-D.jpg
  • Red-billed buffalo weaver (Bubalornis niger) building nest at Sunset Dam, Lower Sabie, Kruger NP, South Africa.
    45359-D.jpg
  • Nest colony of the southern masked veaver (Ploceus velatus) at Sunset Dam, Lower Sabie, Kruger NP, South Africa.
    45349-D.jpg
  • Village weaver (Ploceus cuccullatus) building nest.  Zimanga, South Africa.
    43998-D.jpg
  • An Antarctic Shag (Phalacrocorax bransfieldensis) collecting sea weed for nest material. Photo from Port Lockroy, the Antarctic Peninsula.
    43196-D.jpg
  • An Antarctic Shag (Phalacrocorax bransfieldensis) collecting sea weed for nest material. Photo from Port Lockroy, the Antarctic Peninsula.
    43193-D.jpg
  • Nest colonies of social weaver birds (southern masked weaver, Ploceus velatus, and Red-billed buffalo weaver, Bubalornis niger) at Sunset Dam, Lower Sabie, Kruger NP, South Africa.
    45407-D.jpg
  • Southern red bishop (Euplectes orix) at its nest at Lower Sabie, Kruger NP, South Africa in November.
    45387-D.jpg
  • Southern red bishop (Euplectes orix, breeding male) at its nest at Lower Sabie, Kruger NP, South Africa in November.
    45385-D.jpg
  • Pair of southern masked weaver (Ploceus velatus) building nest at Lower Sabie, Kruger NP, South Africa.
    45371-D.jpg
  • Thick-billed weaver (Amblyospiza albifrons) building nest. Photo from Lower Sabie, Kruger NP, South Africa.
    45367-D.jpg
  • Thick-billed weaver (Amblyospiza albifrons) building nest. Photo from Lower Sabie, Kruger NP, South Africa.
    45365-D.jpg
  • Red-billed buffalo weaver (Bubalornis niger) building nest at Sunset Dam, Lower Sabie, Kruger NP, South Africa.
    45358-D.jpg
  • Yellow-throated petronia (Gymnoris sduperciliaris) collecting buffalo hairs for nest material. Photo from Zimanga, South Africa.
    45271-D.jpg
  • Yellow-throated petronia (Gymnoris sduperciliaris) collecting buffalo hairs for nest material. Photo from Zimanga, South Africa.
    45272-D.jpg
  • Village weaver (Ploceus cuccullatus) building nest.  Zimanga, South Africa.
    44058-D.jpg
  • Lichen huntsman (Pandercetes sp.) guarding its nest. Photo from Tanjung Puting National Park, Kalimantan, Borneo
    113092-D.jpg
  • An Antarctic Shag (Phalacrocorax bransfieldensis) collecting sea weed for nest material. Photo from Port Lockroy, the Antarctic Peninsula.
    43194-D.jpg
  • An Antarctic Shag (Phalacrocorax bransfieldensis) collecting sea weed for nest material. Photo from Port Lockroy, the Antarctic Peninsula.
    43195-D.jpg
  • Nest and eggs of Great Black-backed Gull (Larus marinus), sout-western Norway.
    4437-D.jpg
  • Juvenile Grey Heron (Ardea cinerea) in its nest.
    41029-D.jpg
  • Juvenile Grey Herons (Ardea cinerea) in its nest.
    41030-D.jpg
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Alf J. Nilsen Natural History images

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