Is it cultural genocide (I assume that'd be difficult, can't convince them to become pangolins after all)?
Condor cultural genocide isn't about convincing them to become Pangolins, not immediately anyways.
You start by taking away all of the Condor scholars and intellectuals, the ones who know the deep intricacies of Condor culture and who are the touchstone of it, and kill them. Take all the Condor-written books and books on Condor culture and destroy all of them. Now all that the Condors have left is each other to preserve their culture.
Now you ban Condor cultural traditions. If they have holidays, they aren't allowed to celebrate those, they have to celebrate Pangolin holidays instead. Force merchants and craftsmen to not sell Condor things, such as Condor fashion or Condor cuisine. It now gets harder for Condors to keep the things that make Condor culture Condor, and many are forced to adopt Pangolin things in many aspects of their life.
Fill them with propaganda. Show favoritism to Condors who side openly with the Pangolins, pelt the Condors with the message that the Pangolins are glorious and supreme and that you too can have a taste of that greatness if you just leave behind the squalor of your Condor culture, the squalor that your people brought upon yourselves.
Many will resist, but time moves on. As new Condor children are born, how resilient are they going to be towards Pangolin propaganda? It matters little how many Condors give up their gutted husk of a culture, their children will be more pliable than them, and once another generation passes the children of the new generation will be even more pliable with fewer Condor influences around. Soon enough 'Condor culture' will only exist in a scarce few diehard traditionalists living in dirt while the rest of the Condors enjoy their lives as well-treated second class citizens.
...
It's dystopian as
butts but I can see how the Pangolins would go about turning Condors into 'Pangolins with wings'. A good amount of damage has probably already been done in the form of executing scholars and burning books (or smashing tablets or whatever), so even if we managed to get the Pangolins to stop further demolition of Condor culture there would already be irreparable holes in Condor culture.