You can use these Flickr features as Feeds content sources:
Username: Give us the username of a Flickr user, derived from their URL, to pull in all the photos posted by that user.
Album: If you'd like to display the photos from a single Flickr album, enter the album_id from the album's URL, with an asterisk preceding it. For example: the album id of this album: https://www.flickr.com/photos/vetbonkie/albums/72157653439738204
72157653439738204 . Entering it into Feeds would appear as:
The album must not have privacy settings enabled for it to appear within Feeds.
Due to how Flickr imports from their API, Flickr content in Feeds will show as individual photos and not as albums.