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Modelling the Flying Bird
This book outlines the principles of flight, of birds in particular. It describes a way of simplifying the mechanics of flight into a practical computer program, which will predict in some detailExpand
The Flight of Petrels and Albatrosses (Procellariiformes), Observed in South Georgia and its Vicinity
Nine procellariiform species, covering a range of body mass exceeding 200: 1, were studied during a visit to Bird Island, South Georgia, with the British Antarctic Survey, in the 1979-1980 fieldExpand
Bird flight performance
Bird flight performance: a practical calculation manual
The mechanical approach to flight energetics - the aeronautical approach, power required and power available, uses and limitations of the programs variables needed for flight calculations -Expand
SOARING BEHAVIOUR AND PERFORMANCE OF SOME EAST AFRICAN BIRDS, OBSERVED FROM A MOTOR‐GLIDER
TLDR
The basis of conventional thermal cross-country flying is outlined, and it is explained why the high wing loadings of the Gyps vultures are appropriate to their peripatetic habits, and a method of thermal soaring without circling is discussed, and shown to be more readily feasible for small than for large birds. Expand
Fifteen testable predictions about bird flight
On the basis of previously published theory, numerical predictions are made about effects which could be observed by methods in current use. The first few predictions relate to changes in speed,Expand
Empirical estimates of body drag of large waterfowl and raptors
TLDR
Measurements of the body frontal area of some large living waterfowl and raptors were found to vary with the two-thirds power of thebody mass, with no distinction between the two groups. Expand
Power requirements for horizontal flight in the pigeon Columba livia
1. Certain measurements made on pigeons flying horizontally in a wind-tunnel are described. 2. A method, based on helicopter theory, for calculating the power required to fly at any given speed isExpand
Speeds and wingbeat frequencies of migrating birds compared with calculated benchmarks.
  • C. Pennycuick
  • Mathematics, Medicine
  • The Journal of experimental biology
  • 1 October 2001
Sixteen species of birds passing Falsterbo in southwest Sweden during the autumn migration season were observed using short-range optical methods. Air speeds and wingbeat frequencies were measured,Expand
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