Black Swallowtail spreads wings to the sun to gather warmth for flight.
Black Swallowtail Papilio polyxenes near Dallas TEXAS USA Female Papilioninae Butterflies spread their wings to absorb warmth from the sun. They need to warmth for physiological processes and to fly. When cloudy, few butterflies can fly due to the absence of warmth from the sun.
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Photo credit: © Rick & Nora Bowers / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: black, blue, butterfly, color, colorful, female, nectaring, pink, purple, spread, swallowtail, wings
