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  • Purple sunbird (Cinnyris asiaticus) with the yellow flowers of the introduced vine Tecoma stans. Photo from Chanoud,  Rajasthan, India.
    43809-D.jpg
  • Submerged fever trees (Yellow barked acasia) at Lake Naivasha, Kenya, July 2013.
    40072-D.jpg
  • Yellow iris (Iris pseudacorus). Photo from Vejlerne, Denmark in June.
    112133-D.jpg
  • Western Yellow Wagtail (Motacilla flava, ssp. flava) from Tipperne, Denmark.
    42621-D.jpg
  • Yellow Warbler (Setophaga petechia aureola, female) from Isabela, Galapagos.
    44847-D.jpg
  • Yellow Warbler (Setophaga petechia aureola, female) from James Bay, Santiago Island, Galapagos.
    44813-D.jpg
  • Yellow Warbler (Setophaga petechia aureola, female) from Puerto Egas, Santiago Island, Galapagos.
    44805-D.jpg
  • Western Yellow Wagtail (Motacilla flava, ssp. flava) from Tipperne, Denmark.
    42618-D.jpg
  • Yellow Warbler (Setophaga petechia aureola, female) from James Bay, Santiago Island, Galapagos.
    44806-D.jpg
  • Yellow Warbler (Setophaga petechia aureola, male) from JamesBbay, Santiago Island, Galapagos.
    44803-D.jpg
  • Yellow Warbler (Setophaga petechia aureola, male) from James Bay, Santiago Island, Galapagos.
    44804-D.jpg
  • Western Yellow Wagtail (Motacilla flava, ssp. flava) from Tipperne, Denmark.
    42616-D.jpg
  • Yellow.crowned night heron (Nycticorax violaceus, juvenile) from genovesa, Galapagos.
    44830-D.jpg
  • Yellow.crowned night heron (Nycticorax violaceus, juvenile) from genovesa, Galapagos.
    44828-D.jpg
  • Common zebras resting in front of Yellow Fever Acasia forest at Lake Nakuru, kenya.
    40063-D.jpg
  • Yellow armadillo (Euphractus sexcinctus) from Pantanal, Brazil.
    56138-D.jpg
  • Yellow bellied puddle frog (Occidozyga laevis) from Kubah National Park, Sarawak, Borneo
    3576-D.jpg
  • Yellow Watchman Goby, Cryptocentrus cinctus.
    35076-D.jpg
  • Pair of Yellow Watchman Goby (Cryptocentrus cinctus) with their commensal pistol-shrimp (Alpheus sp.).
    2636-D.jpg
  • Yellow tang (Zebrasoma flavescens).
    2975.jpg
  • Sohal of yellow tangs (Zebrasoma flavescens) at Oahu, Hawaii.
    2039.jpg
  • Yellow.crowned night heron (Nycticorax violaceus, juvenile) from genovesa, Galapagos.
    44831-D.jpg
  • Yellow.crowned night heron (Nycticorax violaceus, juvenile) from genovesa, Galapagos.
    44829-D.jpg
  • Common zebras resting in front of Yellow Fever Acasia forest at Lake Nakuru, Kenya.Nikon D700, 200-400mm @ 220mm, f5.6, EV+0.33, 1/500sec, ISO800, Aperture priority.
    Resting Zebras (40063-D).jpg
  • Unidentified plant with "baby shoe shaped" yellow flowers from Yanacocha, Ecuador. Altitude about 3500 meters.
    13007-D.jpg
  • Yellow armadillo (Euphractus sexcinctus) from Pantanal, Brazil.
    55735-D.jpg
  • Western Yellow Wagtail (Motacilla flava, ssp. flavissima) from Revtangen, south-western Norway in September.
    44376-D.jpg
  • Yellow Watchman Goby, Cryptocentrus cinctus.
    2638-D.jpg
  • Pair of Yellow Watchman Goby (Cryptocentrus cinctus) with their commensal pistol-shrimp (Alpheus sp.).
    2637-D.jpg
  • Sunrize among submerged fever trees (Yellow--barked acasia) at Lake Naivasha, Kenya. July 2013.
    40073-D.jpg
  • Red-and-yellow Barbet, Trachyphonus erythrocephalus, from Samburu NP, Kenya.
    42177-D.jpg
  • Red-and-yellow Barbet, Trachyphonus erythrocephalus, from Lake Manyara, Tanzania.
    4548-D.jpg
  • Red-and-yellow Barbet, Trachyphonus erythrocephalus, from Samburu NP, Kenya.
    42174-D.jpg
  • Old school at the remote farm called "Kleppa" off the island of Hidra in Vest-Agder, Norway.
    23764-D.jpg
  • Golden jelly fungus (Tremella mesentrica).
    12055.jpg
  • Evening in Kanha National Park, Madhya Pradesh, India.
    87091-D.jpg
  • Dawn over Maasai Mara with lonely Giraffe and Akasia tree.
    40028-D.jpg
  • Common sunflower, India.
    13017-D.jpg
  • Twospot Hogfish, Bodianus bimaculatus
    35083-D.jpg
  • Field of Sunflowers, Helianthus annuus, from southern France
    14017.jpg
  • Old houses in Skudenes, Karmöy, Norway.
    23727-D.jpg
  • Old houses in Skudenes, Karmöy, Norway.
    23724-D.jpg
  • Lonely Eider
    41560-D.jpg
  • Lemonpeel Angelfish, Centropyge flavissimus. Pacific colour form with blue eye-ring. Photo from Aitutaki Lagoon, the Cook Islands in the south Pacific.
    2967.jpg
  • Lemonpeel Angelfish, (Centropyge flavissima). Pacific colour form with blue eye-ring.
    2939.jpg
  • Evening in Kanha National Park, Madhya Pradesh, India.
    87097-D.jpg
  • Evening in Kanha National Park, India. Nikon D5, 200-400mm @ 250mm, f4, EV-0.67, 1/800sec, ISO500, Aperture priority
    Evening in Kanha (87091-D).jpg
  • Tubastraea sp., close up of the expanded polyps.
    5085.jpg
  • Old school building that struggles to stay alive in the Norwegian outback.
    23486-D.jpg
  • Summer evening at Lista, south-western Norway
    116060-D.jpg
  • Yellow-billed oxpeckers gathering on the top of an African buffalo. Nikon D500, 600mm f4, 1/1250sec, ISO250, Aperture priority.
    Yellow-billed oxpeckers (43509-D).jpg
  • Yellow-spotted river turtles (Podocnemis unifilis) From Lake Garzacocha, Ecuador.
    3978-D.jpg
  • Yellow-footed green pigeons (Treron phoenicoptera) from Kanha National Park, Madhya Pradesh, India.
    43731-D.jpg
  • Yellow-footed green pigeon (Treron phoenicoptera) from Kaziranga National Park, Assam, north-east India.
    43600-D.jpg
  • Yellow-fronted canary (Crithagra mozambica) from Zimanga, South Africa.
    43931-D.jpg
  • Pair of yellow-throated sandgrouse (Pterocles gutturalis) from Maasai Mara, Kenya.
    44159-D.jpg
  • Yellow-fronted canary (Crithagra mozambica) from Zimanga, South Africa.
    43930-D.jpg
  • Yellow-fronted canary (Crithagra mozambica) from Zimanga, South Africa.
    43929-D.jpg
  • Eastern Yellow-billed Hornbill (Tockus flavirostris) from Samburu National Reserve, Kenya.
    42536-D.jpg
  • Pair of yellow-throated sandgrouse (Pterocles gutturalis) from Ngorongoro Crater, Tanzania.
    4697-D.jpg
  • Yellow-fronted canaries (Crithagra mozambica) from Zimanga, South Africa.
    43932-D.jpg
  • Yellow-fronted canary (Crithagra mozambica) from Zimanga, South Africa.
    43928-D.jpg
  • Yellow-billed hornbill (Tockus flavirostris) in Samburu National Reserve, Kenya.
    42537-D.jpg
  • Southern yellow-billed hornbill (Tockus leucomelas) feeding on a centipede in Kruger NP, South Africa.
    44122-D.jpg
  • Mother and calf African buffalo (Syncerus caffer) with a large flock of yellow-billed oxpeckers (Buphagus africanus) gathering on the mother's back. Photo from Maasai Mara, Kenya.
    56074-D.jpg
  • Yellow-billed ducks (Anas undulata) from Lake Naivasha, Kenya.
    44957-D.jpg
  • Yellow-billed duck (Anas undulata) from Lake Naivasha, Kenya.
    44954-D.jpg
  • Yellow-billed Strok (Mycteria ibis) searching for food in a small pond in Maasai Mara, Kenya.
    44941-D.jpg
  • Yellow-billed Strok (Mycteria ibis) searching for food in a small pond in Maasai Mara, Kenya.
    44940-D.jpg
  • Yellow-necked spurfowl (Pternistis leucoscepus) from Samburu National Reserve, Kenya.
    44413-D.jpg
  • Yellow-wattled lapwing (Vanellus malabaricus) from Seoni, Madhya Pradesh, India.
    43695-D.jpg
  • Large flock of yellow-billed oxpeckers (Buphagus africanus) has gathered on the back of an African buffalo (Syncerus caffer) in Maasai Mara, Kenya.
    43511-D.jpg
  • Yellow-necked Spurfowl, Francolinus leucosepus, from Samburu NP, Kenya.
    42184-D.jpg
  • Yellow-billed stork on a floating island of grass and papyrus in Lake Naivasha, Kenya.
    42459-D.jpg
  • Large gathering of yellow-billed stroks (Mycteria ibis) and great pelecanes (Pelecanus onocrotalus) from Lake Manyara, Tanzania.
    4600-D.jpg
  • Yellow-backed Weaver (Ploceus melanocephalus) from Queen Elisabeth NP, Uganda.
    42397-D.jpg
  • Yellow-billed duck (Anas undulata) from Lake Naivasha, Kenya.
    44958-D.jpg
  • Pair of yellow-billed duck (Anas undulata) from Lake Naivasha, Kenya.
    44394-D.jpg
  • Southern yellow-billed hornbill (Tockus leucomelas) from Kruger NP, South Africa.
    44089-D.jpg
  • Southern yellow-billed hornbill (Tockus leucomelas) from Kruger NP, South Africa.
    44088-D.jpg
  • Yellow-wattled lapwing (Vanellus malabaricus) from Seoni, Madhya Pradesh, India.
    43696-D.jpg
  • Flock of yellow-billed stroks (Mycteria ibis) at a water hole in Maasai Mara, Kenya.
    43518-D.jpg
  • Yellow-billed oxpeckers (Buphagus africanus) gathering on the top of a African buffalo.
    43509-D.jpg
  • Yellow-billed duck (Anas undulata) from Sweetwaters, Kenya.
    43239-D.jpg
  • Eye contact with the blue-and-yellow Macaw (Ara ararauna) in  Wildlife World Zoo, Phoenix, Arizona, USA
    43198-D.jpg
  • Yellow-billed Strok (Mycteria ibis) searching for food in a small pond in Ngorongoro Crater, Tanzania.
    4643-D.jpg
  • Yellow-billed Strok (Mycteria ibis) searching for food in a small pond in Ngorongoro Crater, Tanzania.
    4634-D.jpg
  • Yellow-billed Strok (Mycteria ibis) searching for food in a small pond in Ngorongoro Crater, Tanzania.
    4650-D.jpg
  • Yellow-billed Oxpecker (Buphagus africanus) on the back of a giraff in Serengeti, Tanzania
    4630-D.jpg
  • Yellow-billed Stork (Mycteria ibis) at Lake Naivasha, Kenya.
    42462-D.jpg
  • Southern yellow-billed hornbill (Tockus leucomelas) from Kruger NP, South Africa.
    44121-D.jpg
  • Yellow-billed stroks (Mycteria ibis) from Kruger NP, South Africa.
    44097-D.jpg
  • Pair of southern yellow-billed hornbill (Tockus leucomelas) from Zimanga, South Africa.
    43985-D.jpg
  • Yellow-billed Oxpecker (Buphagus africanus) on the back of a giraff in Serengeti, Tanzania
    4806-D.jpg
  • Yellow-billed Stork (Mycteria ibis) fishing at Lake Naivasha, Kenya.
    42449-D.jpg
  • Yellowbar Angelfish (Pomacanthus maculosus).
    2982.jpg
  • Bush hyrax (Heterohyrax brucei) from Serengeti (Seronera), Tanzania.
    56969-D.jpg
  • Intermediate egret (Ardea intermedia) from Murchison Falls, Uganda.
    44591-D.jpg
  • Smith's bush squirrel (Paraxerus cepapi) form Kruger NP, South Africa.
    56535-D.jpg
  • Chestnut-shouldered petronias (Petronia superciliaris) from Jawai, Rajasthan, India.
    43790-D.jpg
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Alf J. Nilsen Natural History images

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