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left arrowarrow leftTable X d -  Page 72
Airport in Calhoun, Georgia;  October 7, 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
 
340 D. plexippus 9:51 20 m flap,
soar,
glide
straight,
circle,
straight
level,
climb,
descend
161° 240 308° 1.0 m/s - yes - Butterfly started at 0.5 m, flapped up to a thermal and began circling and soaring, climbing nearly straight up.  The butterfly then left the thermal at 20 m and glided back down.
341 D. plexippus 9:54 0.5 m flap straight climb 256° - 280° 2.2 m/s - - - Butterfly started at 0.5 m and climbed steadily until it vanished.
- - 9:58 - - - - - - 284° 2.3 m/s 16.5°C - - WW:  Radar showed targets at 160 m.
342 D. plexippus 10:11 60 m flap,
soar,
glide
straight,
circle
climb,
descend,
climb
140° right 302° 3.6 m/s - yes - Butterfly started at 1 m and flapped up to a thermal, continued to gain altitude by circling and soaring, left the thermal and glided down to a second thermal, climbed up to 60 m by circling an soaring, then left the thermal and began gliding down again.  Two more D. plexippus were flying at 1 m on a 160° bearing and an extreme right crab.  A third was in a thermal.  Two vultures were also soaring.
- - 10:15 - - - - - - - - - yes cumulus
puffs
A D. plexippus was flying along a line of trees.  The upper winds were W.  Swifts were foraging.