Search Results
Your search yielded 2050 images
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FRMU_022308.jpg
Freshwater mussel (Unionoida), on log in river,...
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SNEG_018688.jpg
Snowy Egret (Egretta thula), adult in flight,...
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BNST_021408.jpg
Black-necked Stilt (Himantopus mexicanus),...
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BEKI_004346.jpg
Belted Kingfisher, Megaceryle alcyon,male...
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CGSN_019246.jpg
Rio Grande Leopard Frog (Rana berlandieri),...
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FWDU_021316.jpg
Fulvous Whistling-Duck (Dendrocygna bicolor),...
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GTGR_023112.jpg
Great-tailed Grackle (Quiscalus mexicanus),...
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WODU_045689_Rolfnp_Wo...jpg
Wood Duck (Aix sponsa), adult female, Hill...
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WODU_043571_Rolfnp_Wo...jpg
Wood Duck (Aix sponsa), adult male flapping...
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CAYO_045586_Rolfnp_Yo...jpg
El Capitan and Merced River, Yosemite National...
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LBTH_041831_Rolfnp_Lo...jpg
Long-billed Thrasher (Toxostoma longirostre),...
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LBTH_041829_Rolfnp_Lo...jpg
Long-billed Thrasher (Toxostoma longirostre),...
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YEWA_042490_Rolfnp_Ye...jpg
Yellow Warbler (Dendroica petechia), adult...
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YBCO_041851_Rolfnp_Ye...jpg
Yellow-billed Cuckoo (Coccyzus americanus),...
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YBCO_041847_Rolfnp_Ye...jpg
Yellow-billed Cuckoo (Coccyzus americanus),...
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PABU_042472_Rolfnp_Pa...jpg
Painted Bunting (Passerina ciris), adult male...
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NAWA_041329_Rolfnp_Na...jpg
Nashville Warbler (Vermivora ruficapilla),...
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NAWA_041328_Rolfnp_Na...jpg
Nashville Warbler (Vermivora ruficapilla),...
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NAWA_041322_Rolfnp_Na...jpg
Nashville Warbler (Vermivora ruficapilla),...
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MODO_041898_Rolfnp_Mo...jpg
Mourning Dove (Zenaida macroura), adult at pond...
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MGSQ_041861_Rolfnp_Me...jpg
Mexican Ground Squirrel (Spermophilus...
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HOSP_042446_Rolfnp_Ho...jpg
House Sparrow (Passer domesticus), female...
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GRRO_041971_Rolfnp_Gr...jpg
Greater Roadrunner (Geococcyx californianus),...
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GRRO_041968_Rolfnp_Gr...jpg
Greater Roadrunner (Geococcyx californianus),...
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GRRO_041822_Rolfnp_Gr...jpg
Greater Roadrunner (Geococcyx californianus),...
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EFSQ042540_Rolfnp_Eas...jpg
Eastern Fox Squirrel (Sciurus niger), adult...
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COPE_042381_Rolfnp_Co...jpg
Collared Peccary, Javelina (Tayassu tajacu),...
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CGDO_042409_Rolfnp_Co...jpg
Common Ground-Dove (Columbina passerina), adult...
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BHCO_042539_Rolfnp_Br...jpg
Brown-headed Cowbird (Molothrus ater), adult...
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BHCO_042537_Rolfnp_Br...jpg
Brown-headed Cowbird (Molothrus ater), adult...
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BHCO_042527_Rolfnp_Br...jpg
Brown-headed Cowbird (Molothrus ater), adult...
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BHCO_042467_Rolfnp_Br...jpg
Brown-headed Cowbird (Molothrus ater), male...
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WWDO_030219_Rolfnp_Wh...jpg
White-winged Dove (Zenaida asiatica), adult...
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WISK_030730_Rolfnp_Wi...jpg
Widow Skimmer (Libellula luctuosa), male...
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WISK_030665_Rolfnp_Wi...jpg
Widow Skimmer (Libellula luctuosa), male...
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SPSO_031273_Rolfnp_Sp...jpg
Spiny Softshell (Apalone spinifera), adult...
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ROSP_033926_Rolfnp_Ro...jpg
Roseate Spoonbill (Ajaia ajaja), adult feeding,...
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ROSP_033874_Rolfnp_Ro...jpg
Roseate Spoonbill (Ajaia ajaja), adults...
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RNDU_033707_Rolfnp_Ri...jpg
Ring-necked Duck (Aythya collaris), male...
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RNDU_031242_Rolfnp_Ri...jpg
Ring-necked Duck (Aythya collaris), male...
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NOSH_033351_Rolfnp_No...jpg
Northern Shoveler (Anas clypeata), pair feeding...
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NOSH_032970_Rolfnp_No...jpg
Northern Shoveler (Anas clypeata), male feeding...
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NOSH_032965_Rolfnp_No...jpg
Northern Shoveler (Anas clypeata), male feeding...
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NORA_034358_Rolfnp_No...jpg
Northern Raccoon (Procyon lotor), adult at...
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NORA_034353_Rolfnp_No...jpg
Northern Raccoon (Procyon lotor), adult at...
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GBHE_029455_Rolfnp_Gr...jpg
Great Blue Heron (Ardea herodias), adult with...
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BNST_029967_Rolfnp_Bl...jpg
Black-necked Stilt (Himantopus mexicanus),...
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BLVU_034509_Rolfnp_Bl...jpg
Black Vulture (Coragyps atratus), adults eating...
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BASW_030041_Rolfnp_Ba...jpg
Barn Swallow (Hirundo rustica), adult male...
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BASW_029748_Rolfnp_Ba...jpg
Barn Swallow (Hirundo rustica), adult bathing...
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TETO_029407_Rolfnp_Te...jpg
Fish carcasses in lake during drought, Dinero,...
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RESL_030962_Rolfnp_Re...jpg
Red-eared Slider (Trachemys scripta elegans),...
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GBHE_029455_Rolfnp_Gr...jpg
Great Blue Heron (Ardea herodias), adult with...
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BLVU_030189_Rolfnp_Bl...jpg
Black Vulture (Coragyps atratus), adult eating...
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BASW_029748_Rolfnp_Ba...jpg
Barn Swallow (Hirundo rustica), adult bathing...
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SNEG_028431_Rolfnp_Sn...jpg
Snowy Egret (Egretta thula),adult, Port...
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BIMA_027518_Rolfnp_Bi...jpg
Bigtooth Maples (Acer grandidentatum), autumn...
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_TETO_028013.jpg
Texas Toad (Bufo speciosus), adult in pond,...
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_GPNT_028010.jpg
Great Plains Narrowmouth Toad (Gastrophryne...
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PODA_029022_Rolfnp_Po...jpg
Powdered Dancer (Argia moesta), McKinney Roughs...
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JAWE_029032_Rolfnp_Ja...jpg
Jacob's Well, Wimberley, Hays County, Central...
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JAWE_029031_Rolfnp_Ja...jpg
Jacob's Well, Wimberley, Hays County, Central...
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FABL_027412.jpg
Familiar Bluet (Enallagma civile), pair mating...
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CAGO,004,Franz_Rolfnp...jpg
Canada Goose, Branta canadensis, young,...
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TRSN_019142.jpg
Texas Rat Snake (Elaphe obsoleta lindheimeri),...
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SWSP_022567.jpg
Swamp Sparrow (Melospiza georgiana), adult,...
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MODU_022712.jpg
Mottled Duck (Anas fulvigula), male, Fennessey...
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LEGR_018579.jpg
Least Grebe (Tachybaptus dominicus), adult...
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LEGR_018578.jpg
Least Grebe (Tachybaptus dominicus), adult...
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GREG_018525.jpg
Great Egret ( Ardea alba),adult among other...
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GRAS_018854.jpg
Grasshopper (Acrididae), Fennessey Ranch,...
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FEPI_022943.jpg
Feral Pig (Sus scrofa), young drinking from...
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COMO_018456.jpg
Common Moorhen (Gallinula chloropus), adult on...
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BWTE_018605.jpg
Blue-winged Teal (Anas discors), male preening,...
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NCLA_026625.jpg
Little River flowing through Rolesville...
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NCLA_026554.jpg
American Beaver (Castor canadensis), Frost...
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NCLA_026534.jpg
Ice sickles on log in Haw River, Haw River...
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GCGR_025992.jpg
Great-crested Grebe (Podiceps cristatus), adult...
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GCGR_025956.jpg
Great-crested Grebe (Podiceps cristatus),...
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GCGR_025953.jpg
Great-crested Grebe (Podiceps cristatus), adult...
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EDFR_026012.jpg
Edible Frog (Rana esculenta), adults on log,...
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EDFR_026011.jpg
Edible Frog (Rana esculenta), adult on log,...
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BADE_025997.jpg
Banded Demoiselle (Calopteryx splendens), male...
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GFWO_026436.jpg
Golden-fronted Woodpecker (Melanerpes...
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DCCO_026444.jpg
Double-crested Cormorant (Phalacrocorax...
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WYYE_026838.jpg
Lower Falls, Canyon Village, Yellowstone...
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WYGT_026690.jpg
Oxbow Bend at sunrise, Snake River, Grand Teton...
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SNGO_026724.jpg
Snow Goose (Chen caerulescens), flock lifting...
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SACR_026781.jpg
Sandhill Crane (Grus canadensis), adult in...
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SACR_026769.jpg
Sandhill Crane (Grus canadensis), adult taking...
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SACR_026739.jpg
Sandhill Crane (Grus canadensis), group in...
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SACR_026709.jpg
Sandhill Crane (Grus canadensis), adult in...
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SACR_026652.jpg
Sandhill Crane (Grus canadensis), adult taking...
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NOSH_026753.jpg
Northern Shoveler (Anas clypeata), male taking...
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NOSH_026737.jpg
Northern Shoveler (Anas clypeata), female with...
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NOSH_026712.jpg
Northern Shoveler (Anas clypeata), male in...
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NOSH_026710.jpg
Northern Shoveler (Anas clypeata), male in...
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NMBA_026775.jpg
Wetland, Bosque del Apache National Wildlife...
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MOOS_026684.jpg
Moose (Alces alces), bull, Grand Teton...
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MALL_026655.jpg
Mallard (Anas platyrhynchos), male taking off,...