Figure 4. Example of photographs for flight assessment.

A. Flight ability determines where flies land along the polycarbonate sheet. Use a digital camera to capture the landing height of the flies and use an imagining software (such as ImageJ) to adjust the contrast of the image so flies appear as black dots (right image). B. The black box on the images in (A) represent the area that is enlarged in (B). Before analysis, confirm the black dots (right) correspond with flies (left).