 Table XI b - Page 84
Airport in Calhoun, Georgia; October 8, 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 |
387 |
D. plexippus |
9:37 |
- |
soar,
flap,
soar |
circle,
straight,
circle |
level,
climb |
168 |
variable |
357 |
4.0 m/s |
- |
yes |
- |
A J. coenia landed nearby. |
Break |
- |
9:51 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
cumulus
puffs |
Cumulus puffs were very thin. WW: Radar was not showing
any targets. An air sonde balloon was released. |
Resume |
- |
9:58 |
- |
- |
- |
- |
- |
- |
004° |
5.8 m/s |
13.5°C |
- |
clear |
Unidentified day-flying moth took flight and flapped upward. |
- |
- |
10:06 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
yes |
- |
WW: Radar showed targets up to 300 m. The ambient
temperature at 300 m was 7°C level. |
- |
- |
10:35 |
- |
- |
- |
- |
- |
- |
004° |
2.2 m/s |
16.0°C |
- |
- |
- |
388 |
J. coenia |
10:43 |
30 m |
soar,
flap |
circle,
erratic |
climb |
179° |
- |
355° |
4.5 m/s |
- |
yes |
- |
Butterfly started at 30 m and climbed by a mix of
flapping and soaring in circles. Was it keeping warm while climbing to the top of
inversion? |
389 |
D. plexippus |
10:49 |
45 m |
soar |
- |
- |
S |
- |
- |
- |
- |
yes |
- |
John Westbrook's observation. |
390 |
D. plexippus |
10:53 |
30 m |
flap,
soar |
straight,
circle,
straight |
level,
climb,
level |
190° |
- |
355° |
2.7 m/s |
- |
yes |
- |
Butterfly was flapping along at 5 m when it encountered a thermal
and began to soar in circles. It soared to 30 m before it left the thermal, and
first resumed flapping flight, then switched to soaring, still at 30 m. |