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 ¦
 Table III r - Page 29
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 |
177 |
D. plexippus |
4:50 |
25 m |
soar |
circle |
level |
177° |
- |
360° |
2.0 m/s |
- |
yes |
- |
Two more D. plexippus were also seen - one flying higher and
one lower than #177 |
Break |
- |
4:55 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
While checked nearby wild-flowers for foragers, two more D.
plexippus were seen. One flew down the runway and the other D. plexippus
was seen descending. |
Resume |
- |
5:00 |
- |
- |
- |
- |
- |
- |
- |
- |
21.5°C |
- |
- |
- |
178 |
D. plexippus |
5:05 |
30 m |
soar |
circle,
straight,
circle |
climb,
level |
209° |
250° |
010° |
4.5 m/s |
- |
yes |
- |
Butterfly was slowly gaining altitude. A second D.
plexippus was seen flying at 130 m. |
179 |
D. plexippus |
5:12 |
20 m |
flap |
straight |
level |
- |
255° |
- |
- |
- |
- |
- |
Lost sight of butterfly against sun. |
180 |
D. plexippus |
5:15 |
20 m |
flap |
straight |
level |
221° |
256° |
017° |
5.4 m/s |
- |
- |
- |
Another D. plexippus was seen flying at the same altitude. |
181 |
D. plexippus |
5:17 |
100 m |
soar |
circle,
(straight) |
level |
205° |
(right) |
022° |
6.7 m/s |
- |
yes |
- |
A second D. plexippus was in the same thermal. |
182 |
D. plexippus |
5:20 |
100 m |
soar |
circle,
straight |
level |
187° |
right |
016° |
4.5 m/s |
- |
yes |
- |
Sun had sunk to near the horizon, illuminating the underside of the
high-flying butterflies, making them appear brown. |
183 |
D. plexippus |
5:24 |
100 m |
flap,
soar |
straight |
level |
210° |
220° |
022° |
3.6 m/s |
- |
yes |
25%
cumulus
cover |
Cumulus clouds showing very little vertical development - thick,
flat-bottomed pancakes. |