Annotations for test dataset of images of birds in flight labelled with upstroke and downstroke

Annotations for a dataset used to test a model that can classify images of birds flying in upstroke and in downstroke. Comprises 639 images of birds in flight manually selected from the CUB-200-2011 dataset by Wah et al at Caltech. The images selected were labelled with upstroke and downstroke. There are 352 downstrokes and 287 upstrokes. 

As we cannot redistribute the images, please find them at the relevant link in Related works.