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left arrowarrow leftTable XII a -  Page 90
Airport in Calhoun, Georgia;  October 9, 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 
- - 7:19 - - - - - - NW 0.3 m/s 3.5°C no - Frost.  Essentially no wind.
- - 7:39 - - - - - - - - 6.5°C no - Wind was light and variable.  Small moths (sod webworm) were flying
- - 8:00 - - - - - - - - 8.5°C no - Wind was light and variable.  Balloon drifted NW at 30 m.
- - 8:15 - - - - - - - - - no - Swifts were flapping - no lift. WW:  Radar was not showing any butterfly-like targets.
- - 8:23 - - - - - - - - - no - Wayne took a break and noticed that no butterflies were foraging in the flowers.
- - 8:33 - - - - - - 170° 0.3 m/s 13.5°C - - -
- - 8:49 - - - - - - - - - - - WW:  Still no targets on radar.
402 D. plexippus 9:05 100 m soar straight level 275° left 183° 1.0 m/s 15.0°C yes - WW:  Radar showed targets.   A sharp-shinned hawk flew over.
403 D. plexippus 9:26 15 m flap,
soar
straight,
circle
level,
climb
262° 225° 178° 1.0 m/s - yes - Butterfly started by flapping along at 7 m level, then it flapped upward to a thermal and gained altitude by soaring and circling.  The butterfly left the thermal, resumed flapping flight, and repeated the process with another thermal, finally switching to soaring straight at 15 m.  Balloon indicates wind from 169°