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left arrowarrow leftTable IV d  -  Page 36
Airport in Calhoun, Georgia;  October 1, 1987;    
(Magnetic Declination = 2°W:  Subtract 2° for True Bearing, True Heading and True Wind Direction)
Num.    Species    Time Flight Behavior Weather Field Notes
    I         II     III IV Va Vb Part 1 Part 2 Part 3
 Est.
Alt.
Type
of Flt.
Horiz.
Flt.
Vert.
Flt.
Mag.
Bear.
Mag.
Head.
Wind
Dir.
 Wind 
Vel.
Amb.
Temp
Thrm.
Act.
Cloud 
Types 
215 unknown
black
swallowtail
2:41 30 m flap,
(soar)
straight,
circle
level 197° 235° 008° 2.2 m/s - yes - A B. philenor mimic - could have been a Papilio glaucus (dark form of female Tiger Swallowtail), a Papilio troilus (Spicebush Swallowtail), or a Papilio polyxenes Eastern Black Swallowtail.  It flapped with a light, fluttering, wingbeat.  The unknown butterfly used a mix of fluttering flight and normal soaring flight. Its circles appeared smaller in diameter than those of monarch butterflies.
216 P. sennae 2:53 10 m flap straight level,
climb
153° right 334° 2.7 m/s - yes - Butterfly climbed to clear an airport hanger.  A J coenia, a P. sennae, and a low-flying D. plexippus, were also seen.  Vultures were soaring at 30 m.
217 D. plexippus 3:02 25 m flap,
soar
straight,
circle
climb,
level
188° - 010° 2.2 m/s - yes - Butterfly started at 3 m, flapped up to a thermal and began soaring in circles and drifting downwind while remaining at the same altitude.  A vulture was soaring.
- - 3:04 - - - - - - - - 23.5°C - - J. coenia and P. sennae were evident.
218 D. plexippus 3:08 30 m flap,
soar
straight,
variable
climb 236° - 007° 2.9 m/s - yes - Butterfly flapped up to thermal and began soaring but appeared to have difficulty centering in lift.  Swifts were foraging.