Misc: Where's the 19th hole on a golf course?

Questions

Common name for members of a family of widely distributed shorebirds consisting of more than 60 species?

Common name for nonpoisonous snakes of the boa family?

Common name for numerous heavy-bodied, large-jawed, sedentary fishes found close to weeds, coral, & other protected coastal areas?

Common name for passerine birds of several unrelated families, many having the habit of capturing insects on the wing?

Common name for several plants of the family of composite flowers?