Chorus behaviour was added to Planet Zoo way back in June of 2022 in Update 1.10, and the very first animals to receive it alongside the newly added siamang were the Arctic and timber wolves. Ever since then, it has felt odd that this behaviour was not applied to the dingo, which is also a form of wolf and commonly performs group howls. Now that we have the coyote, another member of Canis that reuses some of the dingo's howls and yet has chorus behaviour, its absence in the dingo stands out even more. Finally giving chorus behaviour to the dingo after all these years would be a simple change but do a lot to make them feel more alive, so I really hope you consider it for a future patch!
Just some examples of dingoes calling together in chorus:
Source: https://youtu.be/v1rQMq1OW4o?si=YRaEECvME6tLx2Xq
Source: https://youtu.be/sM0V2bkkOdM?si=q0xq3HOsC2b01tfY
Source: https://youtu.be/_mmoH9GxFDo?si=l8dc9RkmmWLpF6sq
Source: https://youtu.be/QHMpQZSbOlI?si=jFg2uoCQMklQqyLs
Just some examples of dingoes calling together in chorus: