John Cancalosi / House sparrow (Passer domesticus) male at nest in Saguaro (Carnegiea gigantea) cactus cavity. Non-native bird species that competes with native species for nesting cavities in cacti. Sonoran desert, A...
01625743
John Cancalosi / House sparrow (Passer domesticus) female feeding chicks at nest in Saguaro (Carnegiea gigantea) cactus. Non-native bird species that competes with native species for nesting cavities in cacti. Sonoran...
01625742
John Cancalosi / Great horned owl (Bubo virginianus) and chicks on nest. Gilded flicker (Colaptes chrysoides) excavating nest. On Saguaro (Carnegiea gigantea) cactus, Sonoran desert, Arizona, USA.
01625741
John Cancalosi / Great horned owl (Bubo virginianus) adult and two chicks on nest in Saguaro (Carnegiea gigantea) cactus. Sonoran desert, Arizona, USA.
01625747
John Cancalosi / Great horned owl (Bubo virginianus) preening two chicks in nest in Saguaro (Carnegiea gigantea) cactus, Sonoran desert, Arizona, USA.
01625746
John Cancalosi / Great horned owl (Bubo virginianus) with two chicks on nest in Saguaro (Carnegiea gigantea) cactus, Sonoran desert, Arizona, USA.
01625739
John Cancalosi / Great horned owl (Bubo virginianus) adult and two chicks on nest in Saguaro (Carnegiea gigantea) cactus. Sonoran desert, Arizona, USA.
01625740
John Cancalosi / Great horned owl (Bubo virginianus) adult and two chicks on nest in Saguaro (Carnegiea gigantea) cactus. Sonoran desert, Arizona, USA.
01630099
Jack Dykinga / Saguaro cacti (Carnegia gigantea) at sunset, during a summer rain storm. Saguaro National Park, Sonoran Desert, Arizona, USA, August.
01626564
John Cancalosi / Great horned owl (Bubo virginianus) grooming chick in nest in a Saguaro (Carnegiea gigantea), Sonoran Desert, Arizona, USA, May.
01626563
John Cancalosi / Great horned owl (Bubo virginianus) chick moving around in nest in a Saguaro (Carnegiea gigantea), with parent nearby, Sonoran Desert, Arizona, USA, May.
01626562
John Cancalosi / Great horned owl (Bubo virginianus) and three chicks sleeping in nest in a Saguaro (Carnegiea gigantea), Sonoran Desert, Arizona, USA, May.
01610828
Jack Dykinga / Burrowing owl (Athene cunicularia) Sonoran Desert, Arizona, USA. Display of white brow and chin feathers. October.
01610827
Jack Dykinga / Burrowing owl (Athene cunicularia) showing bright white brow and chin feathers while bobbing up and down in territorial display, sequence 1 of 2, Marana, Sonoran Desert, Arizona, USA. October.
01610826
Jack Dykinga / Burrowing owl (Athene cunicularia) showing bright white brow and chin feathers while bobbing up and down in territorial display, sequence 2 of 2, Marana, Sonoran Desert, Arizona, USA. October.
01610825
Jack Dykinga / Burrowing owl (Athene cunicularia) flying back to burrow, Marana, Sonoran Desert, Arizona, USA. October.
01610824
Jack Dykinga / Burrowing owl (Athene cunicularia) flying back to burrow, Marana, Sonoran Desert, Arizona, USA. October.
01610823
Jack Dykinga / Burrowing owl (Athene cunicularia) flying back to burrow, Marana, Sonoran Desert, Arizona, USA. October.
01610822
Jack Dykinga / Burrowing owl (Athene cunicularia) flying back to burrow, Marana, Sonoran Desert, Arizona, USA. October.
01610821
Jack Dykinga / Roadrunner (Geococcyx californianus) running at speed, Catalina State Park, Arizona, Sonoran Desert, USA. August.
01610820
Jack Dykinga / Roadrunner (Geococcyx californianus) dust-bathing, Catalina State Park, Arizona, Sonoran Desert, USA. August.
01610816
Jack Dykinga / Burrowing owl (Athene cunicularia), Marana, Sonoran Desert, Arizona, USA. Display of brow and chin feathers turning bright white. October.
01610815
Jack Dykinga / Burrowing owl (Athene cunicularia) looking back, Sonoran Desert, Arizona, USA. Display of white brow and chin feathers, October.
01610814
Jack Dykinga / Burrowing owl (Athene cunicularia) preening wings, display of white brow and chin feathers, October. Sonoran Desert, Arizona, USA.
01607043
Jack Dykinga / Burrowing owl (Athene cunicularia) in flight, Marana, Arizona, Sonoran Desert, USA.
01607040
Jack Dykinga / Caltrops summer poppies (Kallstroemia grandiflora) blooming amid mesquite trees (Prosopis sp.) infront of the Santa Catalina Mountains. July, after summer monsoon rains. Catalina State Park, near Tucs...
01607039
Jack Dykinga / Solitary saguaro cactus (Carnegiea gigantea), Sonoran Desert, Arizona, USA. Piccacho Peak State Park visible in the distance, with heavy rains at sunset.
01607560
Jack Dykinga / Arizona poppies (Kallstroemia grandiflora) blooming amongst Mesquite (Prosopsis sp) trees with Santa Catalina mountains in background. Post summer monsoon rain, evening light. Sonoran Desert, Catalina...
01607559
Jack Dykinga / Dust and sand storm sweeping across Sonoran Desert at sunset to Picacho Peak, Picacho Peak State Park, Arizona, USA. August, 2018.
01607558
Jack Dykinga / Arizona poppy (Kallstroemia grandiflora) blooming amongst Mesquite (Prosopsis sp) trees with Santa Catalina mountains in background. Post summer monsoon rains, evening light. Sonoran Desert, Catalina...
01606197
Jack Dykinga / Saguaro cactus (Carnegiea gigantea)flowers, Santa Catalina mountain foothills. Sonoran Desert. Coronado National Forest, Arizona, USA, May.
01599896
Jack Dykinga / Murmuration of Yellow headed blackbird (Xanthocephalus xanthocephalus) flying at sunset, Sonoran Desert, Near Tucson, Arizona, USA.
01599895
Jack Dykinga / Murmuration of Yellow headed blackbird (Xanthocephalus xanthocephalus) flying at sunset, Sonoran Desert, Near Tucson, Arizona, USA.
01599894
Jack Dykinga / Murmuration of Yellow headed blackbird (Xanthocephalus xanthocephalus) flying at sunset, Sonoran Desert, Near Tucson, Arizona, USA.
01599893
Jack Dykinga / Murmuration of Yellow headed blackbird (Xanthocephalus xanthocephalus) flying at sunset, Sonoran Desert, Near Tucson, Arizona, USA.
01599892
Jack Dykinga / Murmuration of Yellow headed blackbird (Xanthocephalus xanthocephalus) flying at sunset, Sonoran Desert, Near Tucson, Arizona, USA.
01599891
Jack Dykinga / Desert agave (Agave deserti) Sonoran Desert near Tucson Mountains, Arizona, USA. Taken with digital focus stacking.
01595854
Claudio Contreras / Granite formation and Sonoran Desert, Catavi, Valle de los Cirios Biosphere Reserve, Baja California Peninsula, Mexico, March
01595853
Claudio Contreras / Boojum tree (Fouquieria columnaris) at night with the Orion Constellation, Sonoran Desert, Valle de los Cirios Biosphere Reserve, Baja California Peninsula, Mexico, March
01595851
Claudio Contreras / Boojum tree (Fouquieria columnaris), Sonoran Desert, Valle de los Cirios Biosphere Reserve, Baja California Peninsula, Mexico, March
01595849
Claudio Contreras / Granite rock formations and Sonoran Desert, Catavi-a, Valle de los Cirios Biosphere Reserve, Baja California Peninsula, Mexico, May
01595848
Claudio Contreras / Boojum tree (Fouquieria columnaris), Valle de los Cirios Biosphere Reserve, Sonoran Desert, Baja California Peninsula, Mexico, May
01595847
Claudio Contreras / Granite rock formation and Sonoran Desert, Catavi, Valle de los Cirios Biosphere Reserve, Baja California Peninsula, Mexico, May
01589370
Jack Dykinga / House finches (Carpodacus mexicanus) aerial territorial fight, Santa Catalina Mountain foothills, Sonoran Desert. Arizona, USA. November. Small repro only
01583874
Jouan Rius / Rainbow over Saguaro cacti (Carnegiea gigantea), Organ Pipe Cactus (Stenocereus thurberi) and Foothills Palo Verde tree (Cercidium microphyllum), Organ Pipe Cactus National Monument, Sonoran Desert, A...
01583860
Jouan Rius / Chain-fruit or Jumping cholla (Cylindropuntia fulgida), Organ Pipe Cactus National Monument, Sonoran Desert, Arizona, USA, April.
01583492
Jack Dykinga / Cactus wren (Campylorhynchus brunneicapillus) building its nest amongst the sharp spines of a Chain cholla cactus (Cylindropuntia fulgida), Sonoran Desert near Tucson, Arizona, USA. July.
01583504
Jack Dykinga / Cactus wren (Campylorhynchus brunneicapillus) building its nest amongst the sharp spines of a Chain cholla cactus (Cylindropuntia fulgida), Sonoran Desert near Tucson, Arizona, USA. July.
01583503
Jack Dykinga / Cactus wren (Campylorhynchus brunneicapillus) carrying nest-building material in its beak for its nest amongst the sharp spines of a Chain cholla cactus (Cylindropuntia fulgida), Sonoran Desert near T...
01575763
John Cancalosi / Couch's spadefoot toad (Scaphiopus coucii) mating after summer rains, Sonoran desert Arizona, USA.
01567707
Jack Dykinga / Whipple Mountain foothills, with sheets of color from blooming Heliotrope Phacelia (Phacelia crenulata) (purple) and Heartleaf evening primrose (Camissonia cardiophylla) with the Riverside and Big Mar...
01567706
Jack Dykinga / Whipple Mountain foothills, with sheets of color from blooming Heliotrope Phacelia (Phacelia crenulata) (purple) and Heartleaf evening primrose (Camissonia cardiophylla) with the Riverside and Big Mar...
01508146
John Cancalosi / Western diamondback rattlesnake (Crotalus atrox), Sonoran Desert, Arizona, USA.
01563079
Jack Dykinga / Desert environment surrounding the border wall along the US-Mexican border through the Sonoran Desert in Arizona and Mexico. Pinacate and Grand Desert Biosphere Reserve, Mexico January 2009.
01563078
Jack Dykinga / Border wall constructed of welded steel, between Arizona and Sonora, Mexico cutting through the Sonoran Desert. Pinacate and Grand Desert Biosphere Reserve, Mexico. January 2009.
01563077
Jack Dykinga / Border wall constructed of welded steel, between Arizona and Sonora, Mexico cutting through the Sonoran Desert. Pinacate and Grand Desert Biosphere Reserve, Mexico. January 2009.
01563076
Jack Dykinga / Border wall constructed of welded steel, between Arizona and Sonora, Mexico cutting through the Sonoran Desert. Pinacate and Grand Desert Biosphere Reserve, Mexico. January 2009.
01563075
Jack Dykinga / Desert environ with Cholla cacti (Cylindropuntia) El Pinacate and Gran Desierto de Altar Biosphere Reserve. Pinacate lava flow, near the border wall along the US-Mexican border through the Sonoran Des...
01563074
Jack Dykinga / Desert environment in the Pinacate and Grand Desert Biosphere Reserve, Cerro Coloardo near the border wall along the US-Mexican border through the Sonoran Desert in Arizona and Mexico. January 2009.
01563073
Jack Dykinga / Senita cacti (Lophocereus schottii) in the Pinacate and Grand Desert Biosphere Reserve, surrounding the border wall along the US-Mexican border through the Sonoran Desert in Arizona and Mexico.
01563069
Jack Dykinga / Border wall constructed of welded steel, between Arizona and Sonora, Mexico cutting through the Sonoran Desert. Pinacate and Grand Desert Biosphere Reserve, Mexico. January 2009.
01563068
Jack Dykinga / Border wall constructed of welded steel, between Arizona and Sonora, Mexico cutting through the Sonoran Desert. Pinacate and Grand Desert Biosphere Reserve, Mexico. January 2009.
01563790
Jack Dykinga / Whipple Mountain foothills, with mass bloom of Notch-leaf scorpion-weed (Phacelia crenula) and Heartleaf evening primrose (Camissonia cardiophylla) Whipple Mountain Wilderness in background, Sonoran D...
01562984
Jack Dykinga / Great horned owl (Bubo virginianus) chick stretching wings in nest in Saguaro cacus (Carnegiea gigantea), Santa Catalina Mountain Foothills, Sonoran Desert, Arizona, USA.
01562983
Jack Dykinga / Great horned owl (Bubo virginianus) chicks stretching in nest in Saguaro cacus (Carnegiea gigantea), Santa Catalina Mountain Foothills, Sonoran Desert, Arizona, USA.
01562982
Jack Dykinga / Great horned owl (Bubo virginianus) parent and chicks at nest in Saguaro cactus (Carnegiea gigantea), Santa Catalina Mountain Foothills, Sonoran Desert, Arizona, USA.
01562981
Jack Dykinga / Great horned owl (Bubo virginianus) chick at nest in Saguaro cacus (Carnegiea gigantea), Santa Catalina Mountain Foothills, Sonoran Desert, Arizona, USA. April.
01562980
Jack Dykinga / Great horned owl (Bubo virginianus) chicks in the nest eating rats, in Saguaro cacus (Carnegiea gigantea), Santa Catalina Mountain Foothills, Sonoran Desert, Arizona, USA. Small repro only.
01562979
Jack Dykinga / Great horned owl (Bubo virginianus) parent bringing rat prey to chicks at nest in Saguaro cacus (Carnegiea gigantea), Santa Catalina Mountain Foothills, Sonoran Desert, Arizona, USA. Small repro only.
01562978
Jack Dykinga / Great horned owl (Bubo virginianus) chick stretching wings in nest in Saguaro cacus (Carnegiea gigantea), Santa Catalina Mountain Foothills, Sonoran Desert, Arizona, USA. April.
01562977
Jack Dykinga / Great horned owl (Bubo virginianus) parent feeding rat to chick at nest in Saguaro cacus (Carnegiea gigantea), Santa Catalina Mountain Foothills, Sonoran Desert, Arizona, USA. April.
01562976
Jack Dykinga / Great horned owl (Bubo virginianus) chick feeding on rat, Saguaro cacus (Carnegiea gigantea), Santa Catalina Mountain Foothills, Sonoran Desert, Arizona, USA. April.
01562975
Jack Dykinga / Great horned owl (Bubo virginianus) chicks in the nest in Saguaro cacus (Carnegiea gigantea), Santa Catalina Mountain Foothills, Sonoran Desert, Arizona, USA.
01562974
Jack Dykinga / Great horned owl (Bubo virginianus) chicks eating in nest in Saguaro cacus (Carnegiea gigantea), Santa Catalina Mountain Foothills, Sonoran Desert, Arizona, USA.
01562973
Jack Dykinga / Great horned owl (Bubo virginianus) chicks in nest in Saguaro cacus (Carnegiea gigantea), Santa Catalina Mountain Foothills, Sonoran Desert, Arizona, USA.
01562968
Jack Dykinga / Horned owl (Bubo virginianus) pair in evening light, Santa Catalina Mountain Foothills, Sonoran Desert, Arizona, USA. April.
01562967
Jack Dykinga / Horned owl (Bubo virginianus) nest in Saguaro cactus, with parent and chicks, Santa Catalina Mountain Foothills, Sonoran Desert, Arizona, USA, April.
01562966
Jack Dykinga / Horned owl (Bubo virginianus) parent with sleepy chicks, Santa Catalina Mountain Foothills, Sonoran Desert,Arizona, USA, April.
01549469
John Cancalosi / Ash-throated flycatcher (Myiarchus cinerascens) bringing food to nest in saguaro cactus, Sonoran Desert , Arizona, USA, July.
01549468
John Cancalosi / Ash-throated flycatcher (Myiarchus cinerascens) bringing food to nest in saguaro cactus, Sonoran Desert , Arizona, USA, July.
01549467
John Cancalosi / Saguaro cactus (Carnegiea gigantea) and Prickly pear cactus (Opuntia) Sonoran Desert, Arizona, USA.
01555149
John Cancalosi / Couch's spadefoot toad (Scaphiopus coucii) mating after summer rains, Sonoran Desert, Arizona, USA, July.
01534542
John Cancalosi / Curve-billed thrashers (Toxostoma curvirostre) parent with chick at nest in Cholla cactus (Opuntia) Sonoran desert Arizona, July
00560499
Sebastian Kennerknecht / Border wall seperating Mexico and United States, Blue Angels Peak, Sierra de Juarez, Colorado Desert, Sonoran Desert, California
00560498
Sebastian Kennerknecht / Soaptree Yucca (Yucca elata) in desert, Blue Angels Peak, Sierra de Juarez, Colorado Desert, Sonoran Desert, California
00560497
Sebastian Kennerknecht / Soaptree Yucca (Yucca elata) in boulders in desert, Blue Angels Peak, Sierra de Juarez, Colorado Desert, Sonoran Desert, California
00560496
Sebastian Kennerknecht / Boulders covering hills in desert, Blue Angels Peak, Sierra de Juarez, Colorado Desert, Sonoran Desert, California
00560495
Sebastian Kennerknecht / Teddy Bear Cholla (Cylindropuntia bigelovii) cactus in desert, Blue Angels Peak, Sierra de Juarez, Colorado Desert, Sonoran Desert, California
00557656
Tim Fitzharris / Saguaro (Carnegiea gigantea) cactii, Tucson Mountains, Saguaro National Park, Arizona
00557655
Tim Fitzharris / Organ Pipe Cactus (Stenocereus thurberi), Ajo Mountains, Organ Pipe Cactus National Monument, Arizona
00557654
Tim Fitzharris / Saguaro (Carnegiea gigantea) cactii in desert, Tucson Mountains, Saguaro National Park, Arizona
00557649
Tim Fitzharris / Cactii in desert, Ajo Mountains, Organ Pipe Cactus National Monument, Arizona
01514913
Jack Dykinga / American bobcat (Lynx rufus baileyi) yawning and resting. Santa Catalina Mountains, Coronado National Forest, Tucson, Arizona, USA, July.
01514912
Jack Dykinga / American bobcat (Lynx rufus baileyi) resting on patio, Santa Catalina Mountains, Coronado National Forest, Tucson, Arizona, USA, July.
01514909
Jack Dykinga / American bobcat (Lynx rufus baileyi) resting on shade 'sails' over patio in garden. Santa Catalina Mountains, Coronado National Forest, Tucson, Arizona, USA, July.
01506624
Jack Dykinga / Great horned owl (Bubo virginianus) chicks in nest in Saguaro cactus (Carnegiea gigantea), near Oracle, Sonoran Desert, Arizona, USA, May.
