Home  ¦ Index to Field Studies  ¦ Current Directory  ¦ Tables:  ¦ I a  ¦ II a  ¦ III a,  III b,  III c,  III d,  III e,  III f,  III g,  III h,  III i,  III j,  III k,  III l,  III m,  III n,  III o,  III p,  III q,  III r,  III s,  III t,  III u  ¦ IV a  ¦ V a  ¦ VI a  ¦ VII a  ¦ VIII a  ¦ IX a  ¦ X a  ¦ XI a  ¦ XII a  ¦ XIII a

left arrowarrow leftTable III p  -  Page 27
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 
162 J. coenia 3:46 60 m flap,
glide
straight descend 168° right 346° 6.7 m/s - yes - Butterfly descended to 10 m.  May have been attracted to trees.  A second D. plexippus was seen at 240 m. Swifts were foraging.
163 D. plexippus 3:50 130 m soar circle climb 158° - 342° 5.8 m/s - yes - Butterfly started at 100 m and circled upward. A strong, well organized, thermal.  Two more J. coenia also seen, one higher in thermal and one at 2 m.
164 J. coenia 3:57 100 m soar straight,
erratic
level 185° (161°) 347° 3.6 - yes - A D. plexippus was flying at the same altitude as the migrant.  A second, lower, J. coenia was also seen.  Swifts were foraging.
165 J. coenia 3:59 100 m soar straight,
erratic
level 196° - 006° 3.1 m/s 22.5°C yes - A second J. coenia approached the migrant.  A T. lacerata was flying in the same thermal.
166 D. plexippus 4:05 130 m soar circle level 173° - 350° 4.0 m/s - yes - a second, lower, J. coenia was also in the thermal.
167 D. plexippus 4:08 60 m soar circle level 174° - 354° 4.5 m/s - yes - A lower flying J. coenia was seen flapping in the thermal.
168 D. plexippus 4:13 30 m soar straight,
circle
level,
climb
203° 260° 334° 2.0 m/s - yes - Butterfly was soaring level at 30 m, with occasional circling, when it encountered strong lift and began circling upward.  A second, lower, D. plexippus was flapping upward.