Search Results
Your search yielded 424 images
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BRCO_034518_Rolfnp_Br...jpg
Bronzed Cowbird (Molothrus aeneus), males,...
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BRCO_034518_Rolfnp_Br...jpg
Bronzed Cowbird (Molothrus aeneus), males,...
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COKI,027379,Rolfnp.jpg
Couch's Kingbird (Tyrannus couchii), adult...
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COKI_027379.jpg
Couch's Kingbird (Tyrannus couchii), adult...
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ELKS_027109.jpg
Elk, Wapiti (Cervus elaphus), bull bugling,...
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ELKS_026806.jpg
Elk, Wapiti (Cervus elaphus), bull smelling...
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ELKS_026665.jpg
Elk, Wapiti (Cervus elaphus), bull bugling,...
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GRTR_000151.jpg
Green Treefrog, Hyla cinerea, male calling at...
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ELKS_011241.jpg
Elk, Wapiti, Cervus elaphus, bull calling,...
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CASP_002649.jpg
Cassin's Sparrow, Aimophila cassinii, male...
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GRTR_000147.jpg
Green Treefrog, Hyla cinerea, male calling at...
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BLGR_004070.jpg
Black Grouse, Tetrao tetrix,male displaying,...
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BLGR_004067.jpg
Black Grouse, Tetrao tetrix,male displaying,...
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AMRO_005538.jpg
American Robin, Turdus migratorius,male...
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RWBL_005011.jpg
Red-winged Blackbird, Agelaius phoeniceus, male...
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RNPH_014017.jpg
Ring-necked Pheasant, Phasianus colchicus,male...
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HEGU_004738.jpg
Herring Gull, Larus argentatus, adults, Hornoya...
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CWMA_015999.jpg
Club-winged Manakin (Machaeropterus...
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NOPA_043948_Rolfnp_No...jpg
Northern Parula (Parula americana), adult male...
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GTGR_043975_Rolfnp_Gr...jpg
Great-tailed Grackle (Quiscalus mexicanus),...
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WSJA_042881_Rolfnp_We...jpg
Western Scrub-Jay (Aphelocoma californica),...
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WSJA_042878_Rolfnp_We...jpg
Western Scrub-Jay (Aphelocoma californica),...
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LETE_042245_Rolfnp_Le...jpg
Least Tern (Sterna antillarum), young tern...
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BLSK_042129_Rolfnp_Bl...jpg
Black Skimmer (Rynchops niger), adult pair...
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BLSK_042063_Rolfnp_Bl...jpg
Black Skimmer (Rynchops niger), adult with...
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BLSK_042062_Rolfnp_Bl...jpg
Black Skimmer (Rynchops niger), adult with...
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GRKI_029442_Rolfnp_Gr...jpg
Great Kiskadee (Pitangus sulphuratus), adult...
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BRCO_029387_Rolfnp_Br...jpg
Bronzed Cowbird (Molothrus aeneus), males,...
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HOOR_027924_Rolfnp_Ho...jpg
Hooded Oriole (Icterus cucullatus), male...
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GPNT_028012_Rolfnp_Gr...jpg
Great Plains Narrowmouth Toad (Gastrophryne...
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GPNT_027865_Rolfnp_Gr...jpg
Great Plains Narrowmouth Toad (Gastrophryne...
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COSP_028008_Rolfnp_Co...jpg
Couch's Spadefoot (Scaphiopus couchii), adult...
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COSP_027994_Rolfnp_Co...jpg
Couch's Spadefoot (Scaphiopus couchii), adult...
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COSP_027988_Rolfnp_Co...jpg
Couch's Spadefoot (Scaphiopus couchii), adult...
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COSP_027987_Rolfnp_Co...jpg
Couch's Spadefoot (Scaphiopus couchii), adult...
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_GPNT_028010.jpg
Great Plains Narrowmouth Toad (Gastrophryne...
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_COSP_027989.jpg
Couch's Spadefoot (Scaphiopus couchii), adult...
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NPOW,027448,Franz_Rol...jpg
Northern Pygmy-Owl (Glaucidium gnoma), male,...
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COSP_027402.jpg
Couch's Spadefoot (Scaphiopus couchii), adult...
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COSP_027400.jpg
Couch's Spadefoot (Scaphiopus couchii), adult...
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COWA_024926.jpg
Colima Warbler (Vermivora crissalis), male...
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COWA_024897.jpg
Colima Warbler (Vermivora crissalis), male...
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BCSP_024969.jpg
Black-chinned Sparrow (Spizella atrogularis),...
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027531.jpg
Mountain Gorilla (Gorilla beringei beringei),...
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027482.jpg
Glass Frog (Cochranella truebae), male calling...
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027478.jpg
Shreve's Sarayacu Tree Frog (Hyla...
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027387.jpg
Saddleback Tamarin (Saguinus fuscicollis),...
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ELKS_027108.jpg
Elk, Wapiti (Cervus elaphus), bull bugling,...
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ELKS_027107.jpg
Elk, Wapiti (Cervus elaphus), bull bugling,...
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GRWO_027155.jpg
Gray Wolf (Canis lupus), adult howling at...
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GPDO_027166.jpg
Gunnison's Prairie Dog (Cynomys gunnisoni),...
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ELKS_027116.jpg
Elk, Wapiti (Cervus elaphus), bull bugling in...
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BTPD_027190.jpg
Black-tailed Prairie Dog (Cynomys...
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BAEA_027322.jpg
Bald Eagle (Haliaeetus leucocephalus), adult...
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AMAV_027362.jpg
American Avocet (Recurvirostra americana),...
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ELKS_026814.jpg
Elk, Wapiti (Cervus elaphus), bull bugling,...
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ELKS_026813.jpg
Elk, Wapiti (Cervus elaphus), bull bugling,...
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ELKS_026660.jpg
Elk, Wapiti (Cervus elaphus), bull bugling,...
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ELKS_026659.jpg
Elk, Wapiti (Cervus elaphus), bull bugling,...
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WETA_026701.jpg
Western Tanager (Piranga ludoviciana), adult...
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SACR_026757.jpg
Sandhill Crane (Grus canadensis), adult in...
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EUST_026565.jpg
European Starling (Sturnus vulgaris), pair...
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WSBL_002880.jpg
White-spotted Bluethroat, Luscinia svecica...
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WODU_005174.jpg
Wood Duck, Aix sponsa,male flapping, New...
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SUTA_002780.jpg
Summer Tanager, Piranga rubra, female calling,...
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STJA_005100.jpg
Steller's Jay, Cyanocitta stelleri, adult on...
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SEWA_003063.jpg
Sedge Warbler, Acrocephalus schoenobaenus, male...
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RWBL_002019.jpg
Red-winged Blackbird, Agelaius phoeniceus,...
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PLCH_004211.jpg
Plain Chachalaca, Ortalis vetula, adult calling...
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LEGR_004799.jpg
Least Grebe, Tachybaptus dominicus,adult on...
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LALO_004777.jpg
Lapland Longspur, Calcarius lapponicus,male...
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LALO_002063.jpg
Lapland Longspur, Calcarius lapponicus,male...
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GRKI_008529.jpg
Great Kiskadee, Pitangus sulphuratus, adult,...
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GCWA_003019.jpg
Golden-cheeked Warbler, Dendroica chrysoparia,...
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ELKS_011274.jpg
Elk, Wapiti, Cervus elaphus, bull calling in...
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EGPL_001812.jpg
European Golden Plover, Pluvialis apricaria ,...
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CRLA_002534.jpg
Crested Lark, Galerida cristata, adult singing,...
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CRCA_001355.jpg
Crested Caracara, Caracara plancus, adult...
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BLGR_004068.jpg
Black Grouse, Tetrao tetrix, male displaying,...
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BHBU_002049.jpg
Black-headed Bunting, Emberiza melanocephala,...
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BBWD_003855.jpg
Black-bellied Whistling-Duck, Dendrocygna...
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ANHI_001623.jpg
Anhinga, Anhinga anhinga, male calling and...
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WSBL_005189.jpg
White-spotted Bluethroat, Luscinia svecica...
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WIWR_003112.jpg
Winter Wren, Troglodytes troglodytes,male...
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PABU_002107.jpg
Painted Bunting, Passerina ciris,male singing...
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PABU_002073.jpg
Painted Bunting, Passerina ciris,male singing...
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METF_000160.jpg
Mediterranean Treefrog, Hyla meridionalis, male...
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LEPC_014705.jpg
Lesser Prairie-Chicken, Tympanuchus...
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LEPC_014639.jpg
Lesser Prairie-Chicken, Tympanuchus...
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LEPC_014589.jpg
Lesser Prairie-Chicken, Tympanuchus...
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LEPC_014586.jpg
Lesser Prairie-Chicken, Tympanuchus...
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KILL_001829.jpg
Killdeer, Charadrius vociferus, adult in Texas...
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GWGU_001643.jpg
Glaucous-winged Gull, Larus glaucescens,adult...
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GRKI_008852.jpg
Great Kiskadee, Pitangus sulphuratus, adult,...
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GCTO_000126.jpg
Gulf Coast Toad, Bufo valliceps, male calling...
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Elk,_001002.jpg
Elk, Wapiti, Cervus elaphus, bull calling,...
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ELKS_010969.jpg
Elk, Wapiti, Cervus elaphus, bull calling,...
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EGPL_004565.jpg
European Golden Plover, Pluvialis apricaria ,...
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COBU_013750.jpg
Corn Bunting, Miliaria calandra, adult singing,...
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CAPE_004072.jpg
Capercaillie, Tetrao urogallus,male displaying,...