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left arrowarrow leftTable III a  -  Page 12
Airport in Calhoun, Georgia;  September 30, 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
 
- - 7:46 - - - - - - 345° 2.5 m/s 16.5°C - none It had rained during the night.  No migratory activity was seen during two brief observation periods at 6:50 and again at 7:30 in the open area adjacent to the motel.  Fracto-cumulus clouds had developed by early morning. 
- - 8:00 - - - - - - 340 3.1 m/s 18.5°C yes fracto-
cumulus
Calhoun airport:  no migratory activity was occurring and no butterflies had been seen during the drive to the airport.
- - 8:10 - - - - - - 345° 4.0 m/s - - - High scans through binoculars were not productive.
- - 8:25 - - - - - - - - - yes fracto-
cumulus
Swifts were foraging at 30 m.  Clouds were low.
- - 8:30 - - - - - - 347° 6.0 m/s - - - Swifts were foraging.  
62 D. plexippus 8:30 130 m soar circle level 187° - 353° 3.3 m/s - yes - Butterfly was soaring under low fracto-cumulus.
63 D. plexippus 8:44 30 m soar circle climb 199° - 021° 3.1 m/s 20.5°C yes - Butterfly started at 12 m and circled up to 30 m.  A hawk was soaring in the same thermal.
64 D. plexippus 8:47 100 m soar circle,
(straight)
level 198° (right) 019° 5.1 m/s - yes -  A swift was foraging in the same thermal.  
65 D. plexippus 8:53 120 m soar circle climb 177° - 007° 4.9 m/s 18.5°C yes cumulus Two more D. plexippus were seen.  Clouds had dark bases.