CUB-200-2010：

Caltech-UCSD Birds 200 (CUB-200) is an image dataset with photos of 200 bird species (mostly North American). For detailed information about the dataset, please see the technical report linked below.

• Number of categories: 200

• Number of images: 6,033

• Annotations: Bounding Box, Rough Segmentation, Attributes

CUB-200-2011：

Caltech-UCSD Birds-200-2011 (CUB-200-2011) is an extended version of the CUB-200 dataset, with roughly double the number of images per class and new part location annotations. For detailed information about the dataset, please see the technical report linked below.

• Number of categories: 200

• Number of images: 11,788

• Annotations per image: 15 Part Locations, 312 Binary Attributes, 1 Bounding Box