Doug Wechsler / Tiger swallowtail butterfly {Papilio glaucus} female resting on trumpetweed. USA.
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Nick Hawkins / Eastern tiger swallowtail butterflies (Papilio glaucus) puddling, New Brunswick, Canada, June.
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Nick Hawkins / Eastern tiger swallowtail butterflies (Papilio glaucus) puddling, New Brunswick, Canada, June.
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Lynn M. Stone / Eastern Tiger Swallowtail Butterfly (Papilio glaucus) nectaring on Zinnia flower in farm garden, Connecticut, USA.
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Lynn M. Stone / Eastern Tiger Swallowtail Butterfly (Papilio glaucus) nectaring on flower in farm garden, Connecticut, USA
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Lynn M. Stone / Eastern Tiger Swallowtail Butterfly (Papilio glaucus) nectaring on Zinnia in farm garden, Connecticut, USA (NPL)
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Lynn M. Stone / Eastern Tiger Swallowtail Butterfly (Papilio glaucus) nectaring on Zinnia in farm garden, Connecticut, USA
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LYNN M. STONE / RF - Eastern Tiger Swallowtail Butterfly (Papilio glaucus) nectaring on Zinnia in farm garden, wild and free. Essex, Connecticut, USA. (This image may be licensed either as rights managed or royalty f...
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Barry Mansell / Eastern tiger swallowtail (Papilio glaucus) Florida, USA.
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Lynn M Stone / Eastern tiger swallowtail butterfly (Papilio glaucus) female, nectaring on Purple Loosestrife (Lythrum salicaria) in wet meadow, East Haddam, Connecticut, USA
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Doug Wechsler / Eastern tiger swallowtail (Papilio glaucus) on early Goldenrod, French Creek State Park, Pennsylvania, USA, August.
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Doug Wechsler / Eastern tiger swallowtail (Papilio glaucus) and Spicebush Swallowtail (Papilio troilus) on butterfly weed, French Creek State Park, Berks County, Pennsylvania, USA, August.
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LYNN M. STONE / Eastern Tiger Swallowtail butterfly (Papilio glaucus), male, feeding on nectar of Pink Thistle, Illinois, USA
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LYNN M. STONE / Eastern Tiger Swallowtail butterfly (Papilio glaucus), dark phase female, on Pink Thistle in tallgrass prairie remnant, Illinois, USA (an intermediate phase between the typical yellow and the entirely...
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Jerry Monkman / Eastern tiger swallowtail butterfly {Papilio glaucus} Sabins Pasture, Vermont, USA
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Doug Wechsler / Male Tiger swallowtail {Papilio glaucus} feeding on Buddleia flowers, Pennsylvania, USA.
Doug Wechsler / Tiger swallowtail butterfly, Virginia USA
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Rolf Nussbaumer / Eastern tiger swallowtail butterfly (Papilio glaucus) nectaring on Red buckeye (Aesculus pavia). Palmetto State Park, Texas, USA.
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Doug Wechsler / Eastern tiger swallowtail (Papilio glaucus) and Peck's skipper butterfly (Polites peckius) on swamp milkweed (Asclepias incarnata) French Creek State Park, Pennsylvania, USA. July.
