Harvey from the eff:
"Google took its proposals to the W3C, the standards-making body for the Web, where they have primarily been discussed in the Web Advertising Business Group, a body made up primarily of ad-tech vendors. In the intervening months, Google and other advertisers have proposed dozens of bird-themed technical standards: PIGIN, TURTLEDOVE, SPARROW, SWAN, SPURFOWL, PELICAN, PARROT… the list goes on. Seriously. Each of the “bird” proposals is designed to perform one of the functions in the targeted advertising ecosystem that is currently done by cookies.
FLoC is designed to help advertisers perform behavioral targeting without third-party cookies."
Bird names, you say?🙂
(last line: italic emphasis mine)
edit: in harvey's eff link above it gives a link to 'have I been Flocd?'---apparently google has made a small number of chrome browers Floc-enabled, for their own research. (eff info all dated march of this year).