Home ¦ Index to Field Studies ¦ Current Directory ¦ Tables: ¦ I a, I b, I c, I d, I e ¦ II a ¦ III a ¦ IV a ¦ V a ¦ VI a ¦ VII a ¦ VIII a ¦ IX a ¦ X a ¦ XI a ¦ XII a ¦ XIII a ¦
Table I a - Page 1 Calhoun, Gordon Co, Georgia; September 28, 1987; Coordinates = 34°30'N, 84°57'W; Altitude = 194 m; Magnetic Declination = 2°W (Subtract 2° for True); Magnetic Inclination = 65.30°; Observers: David Gibo, Alton Sparks, Wayne Wolf, and John Westbrook |
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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. Path |
Vert. Path |
Mag. Bear. |
Mag. Head. |
Wind Dir. |
Wind Vel. |
Amb. Temp. |
Thrm. Act. |
Cloud Types |
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1 | Danaus plexippus | 8:02 | 12 m | flap | straight, circle |
climb | 233° | - | SE | <1 m/s | 24.5°C | - | haze | Observations were made in an open area next to a motel in Calhoun. Butterfly started at 2 m and appeared to be maneuvering to find the core of the thermal. |
2 | D. plexippus | 8:04 | 12 m | soar, flap |
straight | level | 225° | 225 | SE | <1 m/s | 24.5°C | yes | haze | - |
3 | D. plexippus | 8:06 | 30 m | flap | straight | level | SW | - | SE | <1 m/s | 24.5°C | - | haze | - |
Break | - | - | - | - | - | - | - | - | - | - | - | - | - | Two D. plexippus were seen at about 9:00 flying along the roof of the motel. A Mocking bird vigorously chased one of the butterflies but it was able to out-manoeuver the bird and escape. |
- | - | 9:00 | - | - | - | - | - | - | - | - | - | yes | cumulus | Vultures were seen soaring during the drive to Calhoun airport. A D. plexippus was seen flying across the road. |
4 | D. plexippus | 9:40 | 3 m | flap | straight | level | 262° | left | 154° | 2.0 m/s | 23.5°C | yes | cumulus | I set up at the Calhoun Airport. Two more D. plexippus were seen. Thermal had increased. |
5 | D. plexippus | 9:49 | 150 m | soar | circle | climb | 305° | - | 146° | 2.2 m/s | - | - | - | Butterfly started at 100 m and rapidly soared upward. A thermal filled with sharp-shinned hawks passed through the field site. |