What type of behavior is referred to as "fixed action patterns"?

Fixed action patterns are best described as highly stereotyped behaviors that are triggered by specific stimuli. These behaviors are innate and occur in a consistent manner across individuals of the same species, which sets them apart from behaviors that vary significantly between individuals. Fixed action patterns are often automatic responses to particular cues in the environment, demonstrating a reliable and predictable nature.

For example, a classic case is the courtship display in certain bird species, where the male exhibits a specific set of movements in response to the presence of a female. This sequence follows a set pattern and occurs regardless of the individual's prior experience, underlining the innate quality of fixed action patterns.

In contrast, behaviors that vary greatly between individuals would not fit the description of fixed action patterns, and neither would completely random behaviors or those learned purely from experience, as the defining characteristic of fixed action patterns lies in their inherent and predictable nature.