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left arrowarrow leftTable IV a  -  Page 33
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 
- - 7:30 -
8:00
- - - - - - - - - - - No migrating butterflies were observed during observations at an open area near motel in Calhoun.
Start - 8:25 - - - - - - 003° 2.9 m/s 15.5°C - none No migratory activity was seen during the drive to Calhoun airport and none was occuring at the Airport.
200 D. plexippus 8:30 130 m soar circle level 198° - 010° 2.5 m/s - yes - Butterfly was alone in the sky.
201 D. plexippus 8:34 200 m soar - - - - - - - yes - Lost sight of butterfly against glare of sky.  Two more D. plexippus were also seen - one was flying low.
202 D. plexippus 8:37 130 m soar circle,
(straight)
level 186° (right) 360° 3.1 m/s - yes - Three more D. plexippus were seen, one flying higher then #202, and two flying lower.
203 D. plexippus 8:40 100 m soar circle climb 190° - 013° 4.0 m/s - yes - Butterfly started at 60 m and steadily gained altitude while soaring in circles.  Three higher D. plexippus were also seen.
204 D. plexippus 8:45 100 m flap,
soar
straight,
circle
climb 204° 204° 023° 2.0 m/s - yes - Butterfly started at 60 m, flapped upward until it found a thermal.  It then began soaring in circles and continued to gain altitude.  Swifts were now aloft and foraging.