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Table X l - Page 80 Airport in Calhoun, Georgia; October 7, 1987; (Magnetic Declination = 2°W: Subtract 2° for True Bearing, True Heading and True Wind Direction) |
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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. Flt. |
Vert. Flt. |
Mag. Bear. |
Mag. Head. |
Wind Dir. |
Wind Vel. |
Amb. Temp |
Thrm. Act. |
Cloud Types |
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378 | D. plexippus | 4:08 | 30 m | flap, soar |
straight, circle |
level, climb |
158° | - | 352° | 4.9 m/s | - | yes | - | Butterfly was flapping along at 5 m when it encountered a thermal and began to soar in circles and gain altitude, climbing to 30 m. |
379 | D. plexippus | 4:10 | 30 m | flap, soar |
straight, circle |
level, climb |
163° | - | 347° | 4.9 m/s | - | yes | - | Butterfly was flying level at 1 m when it encountered a thermal, probably the same thermal used by the previous two migrants, and began to soar in circles and gain altitude., climbing to 30 m. |
Break | - | 4:11 | - | - | - | - | - | - | - | - | - | - | - | WW: Radar showed abundant targets up to an altitude of 1 km. This was the maximum density of targets seen since the radar station arrived at the field site. |
380 | D. plexippus | 4:15 | 15 m | flap, soar |
straight | climb | 150° | - | 340° | 4.5 m/s | - | yes | - | Butterfly climbed to a thermal and continued gain altitude while soaring straight ahead. It never circled. |
381 | Underwing moth |
- | 8 m | flap | straight | level | 158° | right | 344° | 4.5 m/s | - | - | - | Moth (Noctuidae - unknown species) took off from the ground or from low vegetation. Underwings usually hide on the bark of trees. |
- | - | 4:23 | - | - | - | - | - | - | - | - | - | - | - | WW: Targets were even more abundant than before (since releasing air sonde at 4:11) |
- | - | 4:25 | - | - | - | - | - | - | - | - | 19.5°C | - | - | - |