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  • Organ Pipe cactus (Stenocereu thurberi) from organ Pipe cactus National Monument, southern Arizona.
    11128-D.jpg
  • Female Mandarin Duck (Aix galericulata) from Wildlife World Zoo, Phoenix, Arizona, USA
    43183-D.jpg
  • Hanging chain cholla (Cylindropuntia fulgida) from Organ Pipe Cactus National Monument, southern Arizona.
    11125-D.jpg
  • Forest of Saguaros in Organ Pipe Cactus National Monument, southern Arizona
    22061-D.jpg
  • Morning in Organ Pipe Cactus National Monument, southern Arizona.
    22038-D.jpg
  • Sunset in The Superstitions, Arizona
    22001-D.jpg
  • Black-bellied whistling duck (Dendrocygna autumnalis) from Arizona, USA
    43208-D.jpg
  • Rosy-billed Pochard (Netta peposaca) from Arizona, USA
    43206-D.jpg
  • Male Mandarin Duck (Aix galericulata) from Wildlife World Zoo, Phoenix, Arizona, USA
    43203-D.jpg
  • A leucistic white morph of the Indian Peafowl (Pavo cristatus) from Wildlife World Zoo, Phonix, Arizona, USA
    43199-D.jpg
  • Beautiful and very old specimens of Saguaro cacti (Carnegiea gigantea) in Organ Pipe Cactus National Monument, southern Arizona.
    22048-D.jpg
  • Back lit desert landscape with many species of cacti  in Organ Pipe Cactus National Monument, southern Arizona.
    22050-D.jpg
  • Tracking on horseback through the desert of The Superstitions, southern Arizona, USA
    22023-D.jpg
  • Male Wood Duck (Aix sponsa) from Arizona, USA
    43186-D.jpg
  • American flamingo (Phoenicopterus ruber) from Wildlife World Zoo, Phoenix, ASrizona, USA
    43209-D.jpg
  • Cinnamon Teal (Anas cynaoptera) from Arizona, USA
    43207-D.jpg
  • Common Teal (Anas crecca carolinensis) from Phoenix, Arizona, USA
    43205-D.jpg
  • Purple Prickly Per (Opuntia macrocenta) in the desert at Picketpost Mountain, The Superstitions, Arizona
    11113-D.jpg
  • Beautiful and very old specimens of Saguaro cacti (Carnegiea gigantea) in Organ Pipe Cactus National Monument, southern Arizona.
    22049-D.jpg
  • A shaded valley in Organ Pipe Cactus National Monument, southern Arizona.
    22043-D.jpg
  • Morning in Organ Pipe Cactus National Monument, southern Arizona.
    22033-D.jpg
  • Flowers on the Desert Christmas Cactus (Cylindropuntia leptocaulis), southern Arizona, USA
    11102-D.jpg
  • Large and very old saguaro cacti at Picketpost Mountain, The Superstitions, Arizona
    11110-D.jpg
  • A giant and very old Saguaro cactus in Lake Pleasant Regional Park, close to Phoenix, Arizona
    22070-D.jpg
  • Overlooking Lake Pleasant, Arizona, USA
    22067-D.jpg
  • Desert with cacti in front of the Praying Handss Formation in The Superstitions, southern Arizona
    22027-D.jpg
  • Beautiful desert landscape from The Superstitions, southern Arizona
    22022-D.jpg
  • Male Wood duck (Aix sponsa) from Arizona, USA
    43182-D.jpg
  • Beautiful desert landscape with cacti vegetation in The Superstitions, Arizona
    22006-D.jpg
  • Beautiful desert landscape with cacti vegetation in The Superstitions, Arizona
    22012-D.jpg
  • Sunset in The Superstitions, Arizona
    22003-D.jpg
  • Organ Pipe cactus (Stenocereu thurberi) from organ Pipe cactus National Monument, southern Arizona.
    11130-D.jpg
  • Organ Pipe National Monument, southern Arizona, USA
    22073-D.jpg
  • Saguaro moon. Lake Pleasant Regional Park, Arizona, USA
    22071-D.jpg
  • Back lit desert landscape with many species of cacti  in Organ Pipe Cactus National Monument, southern Arizona.
    22054-D.jpg
  • Vegetation and road in Organ Pipe Cactus National Monument, southern Arizona
    22046-D.jpg
  • Storm building up  in Organ Pipe Cactus National Monument, southern Arizona.
    22044-D.jpg
  • Morning in Organ Pipe Cactus National Monument, southern Arizona.
    22037-D.jpg
  • Elvis Chapel in the Superstition Mountains, southern Arizona
    22029-D.jpg
  • Melanistic male jaguar (Panthera onca), known as "panther" in Wildlife World Zoo, Phoenix, Arizona, USA
    55772-D.jpg
  • Hanging chain cholla (Cylindropuntia fulgida) from Organ Pipe Cactus National Monument, southern Arizona.
    11126-D.jpg
  • Beautiful and diverse desert landscape from The Superstitions, southern Arizona
    22059-D.jpg
  • Elvis Chapel in the Superstition Mountains, southern Arizona
    22028-D.jpg
  • Fishhook Barrel cactus (Ferocactus wislizeni) from Superstition Mountains, Arizona, USA
    11106-D.jpg
  • Landscape in The Superstitions, southern Arizona, USA
    22017-D.jpg
  • Landscape in The Superstitions, southern Arizona, USA
    22016-D.jpg
  • Male Wood Duck (Aix sponsa) from Arizona, USA
    43185-D.jpg
  • Melanistic male jaguar (Panthera onca), known as "panther" in Wildlife World Zoo, Phoenix, Arizona, USA
    55774-D.jpg
  • Eye contact with the blue-and-yellow Macaw (Ara ararauna) in  Wildlife World Zoo, Phoenix, Arizona, USA
    43198-D.jpg
  • Two Sagoaros in Organ Pipe National Monument, southern Arizona, USA
    22077-D.jpg
  • Wash Overlook Picketpost Mountain, Tonto National Forest, Arizona, USA
    22064-D.jpg
  • Picketpost Mountain in Tonto National Forest, Arizona, USA
    22063-D.jpg
  • Barrel cacti overlooking the city of Phoenix, Arizona, USA
    22066-D.jpg
  • Morning in Organ Pipe Cactus National Monument, southern Arizona.
    22035-D.jpg
  • Morning in Organ Pipe Cactus National Monument, southern Arizona.
    22034-D.jpg
  • White-faced whistling duck (Dendrocygna viduata) from Wildlife World Zoo, Phoenix, Arizona, USA
    43204-D.jpg
  • Leucistic colour morph of the White-cheeked Pintain (Anas bahamensis) frtom Phoenix, Arizona, USA
    43200-D.jpg
  • Purple Prickly Per (Opuntia macrocenta) in the desert at Picketpost Mountain, The Superstitions, Arizona
    11114-D.jpg
  • Large and very old saguaro cacti at Picketpost Mountain, The Superstitions, Arizona
    11109-D.jpg
  • Gigantic and very old saguaro cactus in the desert close to Picketpost Mountain, The Superstitions, Arizona.
    11108-D.jpg
  • Storm building up  in Organ Pipe Cactus National Monument, southern Arizona.
    22045-D.jpg
  • Desert landscape around Boyce Thompson Arboreum, southern Arizona, USA
    22021-D.jpg
  • Landscape in The Superstitions, southern Arizona, USA
    22015-D.jpg
  • Organ Pipe cactus (Stenocereu thurberi) from organ Pipe cactus National Monument, southern Arizona.
    11131-D.jpg
  • Hanging chain cholla (Cylindropuntia fulgida) and Saguaros from Organ Pipe Cactus National Monument, southern Arizona.
    11127-D.jpg
  • Landscape close to Organ Pipe National Monument, southern Arizona, USA
    22076-D.jpg
  • Landscape close to Organ Pipe National Monument, southern Arizona, USA
    22075-D.jpg
  • Desert landscape close to Organ Pipe Cactus National Monument, southern Arizona, USA
    22065-D.jpg
  • Back lit desert landscape with many species of cacti  in Organ Pipe Cactus National Monument, southern Arizona.
    22056-D.jpg
  • Close up of a barrel cactus (Fereocactus sp.) from southern Arizona, USA
    11101-D.jpg
  • Landscape in The Superstitions, southern Arizona, USA
    22018-D.jpg
  • Beautiful desert landscape with cacti vegetation in The Superstitions, Arizona
    22007-D.jpg
  • Beautiful desert landscape with cacti vegetaition in The Superstitions, Arizona
    22010-D.jpg
  • American flamingo (Phoenicopterus ruber) from Wildlife World Zoo, Phoenix, ASrizona, USA
    43210-D.jpg
  • Leucistic colour morph of the White-cheeked Pintain (Anas bahamensis) frtom Phoenix, Arizona, USA
    43201-D.jpg
  • Saguaro cactus from Phoenix, Arizona, USA
    11123-D.jpg
  • Teddy Bear Cholla (Cylindropuntia bigelovii) from Organ Pipe Cactus National Monument, southern Arizona.
    11119-D.jpg
  • Morning in Organ Pipe Cactus National Monument, southern Arizona.
    22032-D.jpg
  • Melanistic male jaguar (Panthera onca), known as "panther" in Wildlife World Zoo, Phoenix, Arizona, USA
    55771-D.jpg
  • Male Mandarin Duck (Aix galericulata) from Wildlife World Zoo, Phoenix, Arizona, USA
    43202-D.jpg
  • Close up of a large and very old Saguaro cactus (Carnegiea gigantea) in Organ Pipe Cactus National Monument, southern Arizona
    11121-D.jpg
  • Most likely violet prickly pear (Opuntia gosseliniana) from the desert at Picketpost Mountain, The Superstitions, Arizona.
    11116-D.jpg
  • Hiking in Lake Pleasant Regional Park close to Phoenix, Arizona.
    22069-D.jpg
  • Back lit desert landscape with many species of cacti  in Organ Pipe Cactus National Monument, southern Arizona.
    22055-D.jpg
  • Vegetation and road in Organ Pipe Cactus National Monument, southern Arizona
    22047-D.jpg
  • Desert with cacti in front of the Praying Handss Formation in The Superstitions, southern Arizona
    22026-D.jpg
  • Fishhook Barrel cactus (Ferocactus wislizeni) from Superstition Mountains, Arizona, USA
    11107-D.jpg
  • Early morning in the desert. Landscape from the Superstitions, southern Arizona
    22013-D.jpg
  • Male Wood duck (Aix sponsa) from Arizona, USA
    43184-D.jpg
  • Beautiful desert landscape with cacti vegetation in The Superstitions, Arizona
    22011-D.jpg
  • Melanistic male jaguar (Panthera onca), known as "panther" in Wildlife World Zoo, Phoenix, Arizona, USA
    55773-D.jpg
  • Engelmann prickly pear (Opuntia engelmannii) from the desert at Picketpost Mountain, The Superstitions, Arizona.
    11115-D.jpg
  • Landscape close to Organ Pipe National Monument, southern Arizona, USA
    22074-D.jpg
  • Beautiful and diverse desert landscape from The Superstitions, southern Arizona
    22058-D.jpg
  • Sunrize in Organ Pipe Cactus National Monument, southern Arizona.
    22030-D.jpg
  • Fishhook Barrel cactus (Ferocactus wislizeni) from Superstition Mountains, Arizona, USA
    11103-D.jpg
  • Beautiful desert landscape with cacti vegetation in The Superstitions, Arizona
    22009-D.jpg
  • Close up of the Organ Pipe cactus (Stenocereu thurberi) from organ Pipe cactus National Monument, southern Arizona.
    11129-D.jpg
  • Hanging chain cholla (Cylindropuntia fulgida) from Organ Pipe Cactus National Monument, southern Arizona.
    11124-D.jpg
  • Staghorn Cholla (Cylindropuntia versicolor) from Organ Pipe Cactus National Monument, southern Arizona.
    11120-D.jpg
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Alf J. Nilsen Natural History images

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