 Table X c - Page 71
Airport in Calhoun, Georgia; October 7, 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 |
333 |
D. plexippus |
- |
- |
flap |
straight |
descend,
level |
S |
- |
185° |
2.5 m/s |
- |
- |
- |
Butterfly flapped down and began flying level. Because the
butterfly was flying upwind, it may have been foraging. |
334 |
D. plexippus |
9:23 |
1 m |
flap |
straight |
level,
landed |
237° |
- |
191° |
0.5 m/s |
- |
- |
- |
Butterfly landed and immediately took off again and was
investigating flowers as it flew along. |
335 |
D. plexippus |
9:26 |
2 m |
straight,
circle,
straight |
flap,
soar,
glide |
climb,
level,
descend |
223° |
- |
190° |
1.8 m/s |
- |
yes |
- |
Missed recording highest altitude. Butterfly started at 2 m,
climbed to a thermal and soared in circles a few times, then glided back down. |
336 |
D. plexippus |
9:33 |
15 m |
flap,
soar |
straight |
level,
climb |
S |
- |
293° |
1.5 m/s |
- |
yes |
- |
Butterfly was off to one side. It soared straight across
lift. A second D. plexippus was also seen. Two red-tailed hawks were
soaring in a thermal. |
337 |
D. plexippus |
9:36 |
12 m |
flap,
soar |
straight |
level,
climb,
level |
258° |
265° |
calm |
- |
- |
yes |
- |
Butterfly started at 2 m, climbed to a thermal at 12 m and began to
soar straight. |
338 |
D. plexippus |
9:41 |
100 m |
flap,
soar |
straight,
circle |
level,
climb |
165° |
222 |
261° |
3 m/s |
- |
yes |
- |
- |
339 |
D. plexippus |
9:46 |
200 m |
soar |
circle |
climb |
E |
- |
- |
- |
- |
yes |
- |
Butterfly vanished upward while climbing rapidly in a thermal.
Swifts were foraging. |