Dataset on airflow resistance of wings from owls and non-silently flying birds

The fourth column specifies whether it is a left wing or a right wing, again as a string value. The next column contains the measurement position on the wing, which have been numbered from 1 to 4 as integers. The final column then contains the measured flow resistance R in Pa s/m³ as floating point values.

The csv-file uses Unicode (UTF-8) character encoding and the fields are separated by commas. The corresponding figure is a Portable Document Format (PDF) file named "wingpermeability_boxplot.pdf". It shows the measured air flow resistances contained in the dataset as a box plot.

It can be seen that, on average, the airflow resistance of the owl wings is significantly lower than that of the wings of the non-silently flying birds. A third figure ("measurement_positions.pdf") shows a photograph of one of the Barn Owl wings as an example, indicating the four the measurement positions on the pressure side of the wing.