flocking
n.— «The way it works: Someone from the area will contact Fredell and ask the group to arrange a flock on a friend’s or neighbor’s yard. Fredell then sends out a group to secretly place the birds on the chosen person’s lawn. Fredell’s flock currently contains a grand total of 65 plastic pink flamingos, and she’s charging by the bird. Those purchasing the flock can buy a flock of 15 birds for $15, or 30 for $30, or the entire flock for $65.…In the past four or five years, the fund-raising technique, known as “flocking,” has flourished throughout North America.» —“A touch of pink, for a little green” by Ali Picard Dover-Sherborn Press (Mass.) Feb. 16, 2006. (source: Double-Tongued Dictionary)