  Table III c - Page 6
University of Toronto at Mississauga, Mississauga, Ontario; September 12, 1998;
Magnetic Declination = 10°W (Subtract 10° for True);
Observer: David Gibo |
| Num. |
Species |
Time |
Flight Behaviour |
Weather |
Field Notes |
| I |
II |
III |
IV |
Va |
Vb |
Part 1 |
Part 2 |
Part 3 |
Est.
Alt. |
Type
of Flt. |
Horiz.
Path |
Vert.
Path |
Mag.
Bear. |
Mag.
Head. |
Wind
Dir. |
Wind
Vel. |
Amb.
Temp. |
Thrm.
Act. |
Cloud
Types |
| 10 |
A. junius |
3:05 |
200 m |
flap |
straight
forage |
level
forage |
293° |
- |
calm |
- |
26.5°C |
yes |
100%
strato-
cumulus |
I lost sight of the Dragonfly near its vanishing point just as it
flew into a large group of A. junius, probably flying in a thermal. |
| 11 |
A. junius |
3:07 |
100 m |
flap |
straight |
descend |
280° |
right |
calm |
- |
26.5°C |
yes |
100%
strato-
cumulus |
Dragonfly may have been dropping out
of migration to forage. Other A. junius were also seen. |
| 12 |
A. junius |
3:14 |
200 m |
flap |
straight
forage |
level
forage |
257° |
- |
calm |
- |
26.5°C |
yes |
100%
strato-
cumulus |
Two other A. junius were
also seen. Professor Dan Schulze (Earth Science) joined me and used my spare set of
binoculars to watch some of the migration. Except for lower, foraging individuals,
most of the dragonflies were still invisible without binoculars. |
| 13 |
A. junius |
3:18 |
100 m |
flap |
straight
forage |
level
forage |
250° |
- |
calm |
- |
26.0°C |
yes |
100%
strato-
cumulus |
Several others were also seen. While we were scanning the
sky, a doe and her fawn wandered out of the brush and walked along the edge of the parking
lot. One of the advantages of being at UTM. |
14 |
A. junius |
3:22 |
100 m |
flap |
straight,
forage |
level,
forage |
321° |
- |
calm |
- |
26.0°C |
yes |
100%
strato-
cumulus |
Many other A. junius were seen in the field of view +
swallows + gulls. A thermal was passing through. |