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Related Experiment Video

Updated: Oct 29, 2025

Early Metamorphic Insertion Technology for Insect Flight Behavior Monitoring

Early Metamorphic Insertion Technology for Insect Flight Behavior Monitoring

Published on: July 12, 2014

Raptor wing morphing with flight speed.

Jorn A Cheney¹, Jonathan P J Stevenson², Nicholas E Durston²

¹Structure and Motional Laboratory, Royal Veterinary College, Hatfield AL9 7TA, UK.

Journal of the Royal Society, Interface

|July 13, 2021

Summary

This summary is machine-generated.

Birds control gliding flight by morphing wings and tails. This study reveals repeatable wing shapes and common twist patterns across three raptor species, highlighting coordinated movements for efficient flight.

Keywords:

bird aerodynamics bird wings three-dimensional reconstruction wing morphing

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Area of Science:

Avian biomechanics
Aerodynamics
Comparative anatomy

Background:

Birds utilize complex wing and tail morphing for flight control.
Understanding these adaptations is crucial for avian flight dynamics.

Purpose of the Study:

To reconstruct and analyze the 3D flight geometries of gliding raptors.
To identify common morphing strategies and their functional significance.

Main Methods:

High-resolution videogrammetry was employed to capture detailed 3D flight data.
Three raptor species (barn owl, tawny owl, goshawk) were studied during gliding.

Main Results:

Wing shapes were highly repeatable, with shoulder actuation critical for planform reconfiguration and angle of attack control.
Common spanwise twist patterns, an inverse relationship between twist and camber, and anhedral wing configurations were observed.
Increased speed correlated with reduced wing camber and a saddle-shaped wing bend; coordinated wing-tail movements suggest indirect aeroelastic control via the tail.

Conclusions:

Raptor gliding flight involves consistent and complex wing morphing strategies.
Coordinated wing and tail movements are essential for efficient flight, with the tail potentially modulating wing camber.