If you want to move photos and videos from Amazon S3 to Flickr, then you can use "S3 Browser" and download photos and videos to Mac and then upload them to Flickr. There are two ways to upload photos and videos to Flickr from Mac. You can upload photos and videos to Flickr using "Upload" button by signing in to your Flickr account. You have another option to upload the photos i.e "Drag-and-drop". Here you can simply drag & drop photos and videos directly from your Mac to your Flickr account.