Annotating bird in image

For training deep-learning model to detect birds in images, we need abundant of annotated images to train the model. Currently, I have about 14,000 images for about 300 categories of birds. I need someone to 'rectangle' every bird in the images. Actually, it don't need to draw a real rectangle on the image. It only need to create a .txt file for each image, and each .txt file contain 4 coordinates x1: the x-axile value of the left-top point of the rectangle y1: the y-axile value of the left-top point of the rectangle x2: the x-axile value of the right-bottom point of the rectangle y2: the y-axile value of the right-bottom point of the rectangle just like the attachment show All my pictures are in the .tgz file: [login to view URL]