Indeed, telescopes with higher magnification often are compromised by heat- wave distortion and tripod vibrations (Dunne et ... including flight pattern, wing-to- tail ratio, head-to- body ratio, wing shape in relation to wind speed, flight profile, etc.
Title | : | Raptor migration watch-site manual |
Author | : | Keith L. Bildstein, Jorje I. Zalles, Hawks Aloft Worldwide (Program) |
Publisher | : | - 1995 |
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