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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BNST_021408.jpg
Black-necked Stilt (Himantopus mexicanus),...
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SNEG_018688.jpg
Snowy Egret (Egretta thula), adult in flight,...
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FWDU_021316.jpg
Fulvous Whistling-Duck (Dendrocygna bicolor),...
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CGSN_019246.jpg
Rio Grande Leopard Frog (Rana berlandieri),...
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BEKI_004346.jpg
Belted Kingfisher, Megaceryle alcyon,male...
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GTGR_023112.jpg
Great-tailed Grackle (Quiscalus mexicanus),...
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CAYO_045586_Rolfnp_Yo...jpg
El Capitan and Merced River, Yosemite National...
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LBTH_041829_Rolfnp_Lo...jpg
Long-billed Thrasher (Toxostoma longirostre),...
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NAWA_041329_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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NOSH_032970_Rolfnp_No...jpg
Northern Shoveler (Anas clypeata), male feeding...
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BNST_029967_Rolfnp_Bl...jpg
Black-necked Stilt (Himantopus mexicanus),...
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FEPI_022943.jpg
Feral Pig (Sus scrofa), young drinking from...
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BADE_025997.jpg
Banded Demoiselle (Calopteryx splendens), male...
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WYYE_026838.jpg
Lower Falls, Canyon Village, Yellowstone...
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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_026770.jpg
Sandhill Crane (Grus canadensis), adult taking...
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SPSA_001897.jpg
Spotted Sandpiper, Actitis macularia,adult,...
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SNEG_021125.jpg
Snowy Egret (Egretta thula), adult in flight,...
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SNEG_003622.jpg
Snowy Egret, Egretta thula, adult eating Rio...
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SAND_001884.jpg
Sanderling, Calidris alba,adult running winter...
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LEGR_003991.jpg
Least Grebe, Tachybaptus dominicus,adult on...
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HUGO_001798.jpg
Hudsonian Godwit, Limosa haemastica,adult...
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GRTR_000151.jpg
Green Treefrog, Hyla cinerea, male calling at...
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GRHE_003566.jpg
Green Heron, Butorides virescens,young in nest,...
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COTE_003896.jpg
Common Teal, Anus crecca, male, Unterlunkhofen,...
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BNST_004395.jpg
Black-necked Stilt, Himantopus mexicanus, pair...
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SNGO_003970.jpg
Snow Goose, Chen caerulescens,adult in flight,...
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BNST_003717.jpg
Black-necked Stilt, Himantopus mexicanus, pair...
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BAEA_001364.jpg
Bald Eagle, Haliaeetus leucocephalus,adult in...
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WYGT_013351.jpg
Oxbow Bend at sunrise, Grand Teton NP,Wyoming, USA
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TRHE_003640.jpg
Tricolored Heron, Egretta tricolor, adult on...
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SPRE_014062.jpg
Spotted Redshank, Tringa erythropus,adult,...
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SNGO_019790.jpg
Snow Goose (Chen caerulescens), flock lifting...
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SAND_001881.jpg
Sanderling, Calidris alba,adult running winter...
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ROSP_004983.jpg
Roseate Spoonbill, Ajaia ajaja, young yawning...
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RGSN_019259.jpg
Rough Green Snake (Opheodrys aestivus), adult...
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RESL_014948.jpg
Red-eared Slider, Trachemys scripta elegans,...
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RAFO_019948.jpg
Rambur's Forktail (Ischnura ramburii), pair...
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PRLA_012917.jpg
River in Rainforest, El Yunque, Caribbean...
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Moos_011012.jpg
Moose, Alces alces, bull in snowstorm with...
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METR_000167.jpg
Mexican Treefrog, Smilisca baudinii, adult on...
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JAPE_012796.jpg
Guide taking boat tour into falls, Somerset...
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HEGU_004738.jpg
Herring Gull, Larus argentatus, adults, Hornoya...
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GRGO_014326.jpg
Greylag Goose, Anser anser, adult with...
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GBTE_004634.jpg
Gull-billed Tern, Sterna nilotica, adult with...
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EUCO_004575.jpg
Eurasian Coot, Fulica atra,adult walking on...
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DCCO_004539.jpg
Double-crested Cormorant, Phalacrocorax...
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CTFR_013797.jpg
Common Tree Frog, Hyla arborea, adult resting,...
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COBL_010560.jpg
Common Bladderwort, Utricularia vulgaris,...
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BHGU_004365.jpg
Black-headed Gull, Larus ridibundus, adult...
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BBWD_004327.jpg
Black-bellied Whistling-Duck, Dendrocygna...
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WODU_045689_Rolfnp_Wo...jpg
Wood Duck (Aix sponsa), adult female, Hill...
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WODU_043580_Rolfnp_Wo...jpg
Wood Duck (Aix sponsa), adult male flapping...
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WODU_043571_Rolfnp_Wo...jpg
Wood Duck (Aix sponsa), adult male flapping...
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BBPL_043998_Rolfnp_Bl...jpg
Black-bellied Plover (Pluvialis squatarola),...
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BBPL_043987_Rolfnp_Bl...jpg
Black-bellied Plover (Pluvialis squatarola),...
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LBTH_041834_Rolfnp_Lo...jpg
Long-billed Thrasher (Toxostoma longirostre),...
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LBTH_041833_Rolfnp_Lo...jpg
Long-billed Thrasher (Toxostoma longirostre),...
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LBTH_041831_Rolfnp_Lo...jpg
Long-billed Thrasher (Toxostoma longirostre),...
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YEWA_042494_Rolfnp_Ye...jpg
Yellow Warbler (Dendroica petechia), adult...
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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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PABU_042403_Rolfnp_Pa...jpg
Painted Bunting (Passerina ciris), adult female...
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NOBO_042404_Rolfnp_No...jpg
Northern Bobwhite (Colinus virginianus), male...
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NOBO_041958_Rolfnp_No...jpg
Northern Bobwhite (Colinus virginianus), pair...
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NOBO_041905_Rolfnp_No...jpg
Northern Bobwhite (Colinus virginianus), group...
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NAWA_041332_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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MGSQ_042476_Rolfnp_Me...jpg
Mexican Ground Squirrel (Spermophilus...
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MGSQ_041978_Rolfnp_Me...jpg
Mexican Ground Squirrel (Spermophilus...
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MGSQ_041952_Rolfnp_Me...jpg
Mexican Ground Squirrel (Spermophilus...
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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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HOSP_042438_Rolfnp_Ho...jpg
House Sparrow (Passer domesticus), female...
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HCRA_042464_Rolfnp_Hi...jpg
Hispid Cotton Rat (Sigmodon hispidus), adult at...
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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_041927_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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EACO_041910_Rolfnp_Ea...jpg
Eastern Cottontail (Sylvilagus floridanus),...
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EACO_041904_Rolfnp_Ea...jpg
Eastern Cottontail (Sylvilagus floridanus),...
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COPE_042383_Rolfnp_Co...jpg
Collared Peccary, Javelina (Tayassu tajacu),...
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COPE_042379_Rolfnp_Co...jpg
Collared Peccary, Javelina (Tayassu tajacu),...
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CGDO_041979_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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WISK_030763_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_033874_Rolfnp_Ro...jpg
Roseate Spoonbill (Ajaia ajaja), adults...
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ROSP_030668_Rolfnp_Ro...jpg
Roseate Spoonbill (Ajaia ajaja), immature...
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RNDU_033707_Rolfnp_Ri...jpg
Ring-necked Duck (Aythya collaris), male...