Editing Collective behavior (section)

==Defining the field==
{{Further|Collective animal behavior}}
Turner and Killian were the first sociologists to back their theoretical propositions with visual evidence in the form of photographs and motion pictures of collective behavior in action.{{r|TurnerKillian1957}} Prior to that sociologists relied heavily upon eyewitness accounts, which turned out to be far less reliable than one would hope.

Turner and Killian's approach is based largely upon the arguments of Blumer, who argued that social "forces" are not really forces. The actor is active:  He creates an interpretation of the acts of others, and acts on the basis of this interpretation.