Yet, you have free ranging “herds” of goats, cattle, bison, elephants, and zebras (though a ‘dazzle’ is far more exotic sounding for the latter). When you consider the intelligence, highly sophisticated social structure, and known emotional capacity of elephants (not at all in dispute, as many would for chickens) their description as a herd animal defies that generalization. Though I also like the “a blessing of unicorns” as a group descriptor. Maybe we should also apply that to chickens? A blessing of chickens... that seems quite apt.