Vultures and influenza.

"Positive serological status of 2 individuals confirmed that they had been infected by HPAI viruses. Death was recorded for 3 of the 31 tracked individuals, whereas all others recovered and returned quickly to their foraging routine, although at least 9 birds failed breeding."

https://www.cell.com/current-biology/fulltext/S0960-9822(23)01000-X