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 k  -  Page 22
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 
125 D. plexippus 1:21 160 m soar straight,
circle
climb 155° right 341° 6.7 m/s - yes - Butterfly started at 130 m.  An additional six D. plexippus and a J. coenia were also in the thermal. All of the D. plexippus held right crabbed (right rotated ) headings.
126 D. plexippus 1:23 15 m flap,
soar
straight,
circle
climb 155° - 350° 6.3 m/s - yes - Butterfly started at 3 m, flapped up to thermal, climbed while soaring straight, then began circling at 15 m and drifted downwind with little or no further gain in altitude.
127 J. coenia 1:28 60 m soar,
(flap)
straight,
erratic
level 187° right 357° 6.7 m/s - yes - Butterfly only flapped briefly.  A T. lacerata was seen foraging.
128 J. coenia 1:32 100 m soar straight level 162° right 325° 7.2 m/s - yes - A second J. coenia and a D. plexippus were also seen.
129 J. coenia 1:33 30 m flap variable level 148° variable - 5.8 m/s - - - Butterfly had a very erratic track - frequent bursts of flapping flight and frequent changes in heading.
130 D. plexippus 1:38 100 m glide straight descend 210° 255° 328° 8.3 m/s - - - Butterfly descended at a very steep angle - almost a dive.  A P. sennae was also seen.
131 D. plexippus 1:42 12 m glide straight descend 227° 271° 009° 5.8 m/s - yes - A second D. plexippus was seen soaring in circles at a very high altitude (presumably about 300 m - near the limit of visibility thorough binoculars).