How about deer the unseen grazer
,( sense we have killed the pumas and wolves throughout much of there range deer populations have vastly outgrown the lands ability to support them ) or my how those aliens look pretty. Help people understand the plight of our wildflowers in urban areas
Few know what's native anymore and its the alien exotics that will drive them to extinction some plants like purple loosestrife should be picked on site
Note I don't think it's practical or possible to introduce them the large carnivores back that would be a threat to public safety but if they allowed greater harvests of deer from hunters or extend the seasons it would restore native flowers from over grazing in urban areas